dr. fawzy elnady professor of anatomy and embryology...
TRANSCRIPT
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Dr. Fawzy Elnady
Professor of Anatomy and Embryology
Faculty of Veterinary Medicine
Cairo University
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By the end of this lecture you should be able to:
1. Understand the components and functions of the digestive system
2. Understand the anatomical features of each part of GIT.
3. Apply the normal topographical anatomy of the digestive system on the live animal.
4. Understand the clinical correlation of anatomy to some affections of the GIT.
Objectives
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Functions
Prehension
Mastication
Chemical digestion
Absorption
Elimination of wastes
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Key terms
Digestive tube
Digestive tract
Gastrointestinal tract (GI)
Gastroenteric tract
Alimentary canal
Gut
Entery ---- intestine Entritis
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9 regions
Imaginary planes:
2 transverse planes ---- 3 (cr, middle, ca abdominal)
2 sagittal planes
Abdominal Regions
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Thoracic
Abdominal
Pelvic
Body cavities and serous membranes
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Largest serous membrane in the body
Closed sac in male
2 openings in female (uterine tube)
Peritoneal cavity (between 2… contain serous fluid)
Parietal and visceral
The Peritoneum
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Def.
3 sections
Rosette-like in C.S
Esophagus
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The Stomach
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Type
Description:
Shape and Size
Position
Stomach of the horse
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Equine stomach
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Orifices
Sphicters
Surfaces
Extremities
Curvatures
Regions
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Prof. Fawzy Elnady [email protected]
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Equine stomach
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Non peritoneal
Peritoneal
Vessels:
Arteries… Celiac a
Veins … Gastric veins --- into portal vein
Lymph … gastric l. nodes
Nerves:
Vagus and sympathetic
Fixation of the stomach
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epiploic foramen
body of pancreas
pancreatic ring
Greater omentum
Rt. lobe of pancreas
Greater curvature
spleen
Visceral surface
Lesser curvature
Gastrosplenic lig.
Left lobe of pancreas
Renosplenic lig
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Ext. clinical examination of the stomach in horse is
inaccessible Why?
Gastric distension in horse (if left) …. Rupture Why?
Horse can’t vomit …. Why? ----V3S
Clinical
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Herniation and retraction of the gut tube.
Fixed viscera:
stomach and duodenum (cranially)
Ileum, cecum and colon (caudally)
Mobile viscera:
Jejunum
Length of the mesentries
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Small intestine
Duodenum jejunum ileum
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Prof. Fawzy Elnady
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Duodenum
Stomach and duodenum dorsal aspect
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Starts caudal to pylorus --- ends at duodenojejunal flexure Length 1m Shape: horse shoe like 4 Parts:
1. Cranial part:a. S shaped loop (duodenal bulb or duodenal ampula)b. Cr. duodenal flexurec. Major and minor duodenal papilla
2. Descending (ca duodenal flexure)3. Transverse 4. Ascending (duodenojejunal flexure)
Blood Supply
Duodenum
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Longest: about 22 m
Begins at DJ flexure & ends at JI junction.
Long meso-jejunum (originate at T18 – L1&2)
Found anywhere in abdomen, but mainly in Left dorsal part.
(vlovulus- intussusception – incarceration of jejunalloops in the epiploic foramen or tunica vaginalis.
15- 20 jejunal Aa. (arcades)
Jejunum
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Shortest ½ m
Opens at ileocecal opening
2 curvatures:Greater …. Ileocecal fold
Lesser … mesoileum (short)
Thick wall (ileal sphincter) At L3-4 it passes from
ileocecal opening: into lesser curvature of base of cecum.
Ileal papilla: (site of intussusception)
Ileum
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Large intestine
Cecum Colon
Rectum
Anal canal
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Def.
Shape & Length
curvatures
Parts
Teniae ceci (bands)
Orifices
Blood and Nerve supply
Cecum
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Auscultation
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Trocharization of cecum
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Colon
Ascending Transverse Descending
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[email protected]. Fawzy Elnady
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[email protected]. Fawzy Elnady
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Arrangement of Asc. Colon
Part # of taeniae Sacculation Diameter Bl. supply
RVC 4
4 rows Wide Colic A.SF 4
LVC 4
PF 1 anastomosis
LDC 1 No smallest
Rt. Colic A. DF 3 wide
RDC 3 Weak Largest (ampulla coli)
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Right side
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Continuation of desc. Colon through pelvic cavity, to
terminate as the anal canal.
Parts
Relations
Female
Male
Muscles: Rectococcygeus
Prof. Fawzy Elnady
Rectum
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Terminal part of digestive tract. Muscles1- internal anal sphincter 2- external anal sphinter3- Levator ani4- Suspensory lig. of anus (ventral rectal loop)
Origin: 1st. cd vertebraInsertion:I. in male …. Continues as retractor penis m.II. In female ….. Continues as retractor clitoridis & blends with
constrictor vulvae M.Action as accessory anal sphincter.
Anal Canal
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Basic lobation of liver
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Weight
Position & direction
Surfaces
Borders
Lobes
Gall bladder
Porta hepatis
Renal impression
[email protected]. Fawzy Elnady
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Liver of a horse (visceral view)
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Liver of a horse (visceral view)
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Liver of a horse (visceral view)
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Coronary lig.
Rt. & Lt. triangular ligg.
Falciform lig. (ventral part of ventral mesogastrium)
Round lig
Lesser omentum (dorsal part of ventral mesogastrium)
Hepaticgastric
Hepatoduodenal
Hepato renal lig.
[email protected]. Fawzy Elnady
Peritoneal fixation
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Shape triangular
Position --- sublumbar, cd to stomach and liver
Description
2 surfaces
3 borders
3 parts (body and Rt, left lobes)
The body is perforated by portal ring for portal V.
Secretory ducts (pancreatic duct and accessory pancreatic duct.)
Pancreas
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Prof. Dr. Fawzy Elnady Email: [email protected]
![Page 69: Dr. Fawzy Elnady Professor of Anatomy and Embryology ...scholar.cu.edu.eg/felnady/files/dig_105_2014.pdf · Faculty of Veterinary Medicine Cairo University ... Understand the clinical](https://reader031.vdocument.in/reader031/viewer/2022022804/5c949e6309d3f2c7468c7d38/html5/thumbnails/69.jpg)
Its poorly attached to the body wall. Secured only at the cecal base and transverse colon. The rest is freely moveable and susceptible to volvulus
Prof. Fawzy Elnady
What problems can you see associated with the large colon?
![Page 70: Dr. Fawzy Elnady Professor of Anatomy and Embryology ...scholar.cu.edu.eg/felnady/files/dig_105_2014.pdf · Faculty of Veterinary Medicine Cairo University ... Understand the clinical](https://reader031.vdocument.in/reader031/viewer/2022022804/5c949e6309d3f2c7468c7d38/html5/thumbnails/70.jpg)
Funnel shaped and short.
Prof. Fawzy Elnady
Why do you sometimes see blockage in the transverse colon?
![Page 71: Dr. Fawzy Elnady Professor of Anatomy and Embryology ...scholar.cu.edu.eg/felnady/files/dig_105_2014.pdf · Faculty of Veterinary Medicine Cairo University ... Understand the clinical](https://reader031.vdocument.in/reader031/viewer/2022022804/5c949e6309d3f2c7468c7d38/html5/thumbnails/71.jpg)
Pelvic flexure
Prof. Fawzy Elnady
Which site is the most dangerous in terms of blockage?
![Page 72: Dr. Fawzy Elnady Professor of Anatomy and Embryology ...scholar.cu.edu.eg/felnady/files/dig_105_2014.pdf · Faculty of Veterinary Medicine Cairo University ... Understand the clinical](https://reader031.vdocument.in/reader031/viewer/2022022804/5c949e6309d3f2c7468c7d38/html5/thumbnails/72.jpg)
Enlarged cranial part of base falls over cranioventrallyand blocks the ceco-colic orifice. Trocarization needs to be done.
Prof. Fawzy Elnady
Why do you sometimes see impaction at the ceco-colic opening? What do you do to fix?
![Page 73: Dr. Fawzy Elnady Professor of Anatomy and Embryology ...scholar.cu.edu.eg/felnady/files/dig_105_2014.pdf · Faculty of Veterinary Medicine Cairo University ... Understand the clinical](https://reader031.vdocument.in/reader031/viewer/2022022804/5c949e6309d3f2c7468c7d38/html5/thumbnails/73.jpg)
The ileum telescopes into the cecum (intussusception). Surgical remedy.
Prof. Fawzy Elnady
Why do you sometimes see impaction (or peristasis) at the ileo-cecal opening? How would you fix this?
![Page 75: Dr. Fawzy Elnady Professor of Anatomy and Embryology ...scholar.cu.edu.eg/felnady/files/dig_105_2014.pdf · Faculty of Veterinary Medicine Cairo University ... Understand the clinical](https://reader031.vdocument.in/reader031/viewer/2022022804/5c949e6309d3f2c7468c7d38/html5/thumbnails/75.jpg)
IleumIleo-cecal openingCeco-colic openingPelvic flexureTransverse colon
Prof. Fawzy Elnady
Potential areas of intestinal obstruction.
![Page 76: Dr. Fawzy Elnady Professor of Anatomy and Embryology ...scholar.cu.edu.eg/felnady/files/dig_105_2014.pdf · Faculty of Veterinary Medicine Cairo University ... Understand the clinical](https://reader031.vdocument.in/reader031/viewer/2022022804/5c949e6309d3f2c7468c7d38/html5/thumbnails/76.jpg)
Funnel shaped (risk of impaction)
Attached to roof of body cavity.
2 taeniae.
Present cranial to the cranial mesenatric artery
Prof. Fawzy Elnady
Name features of the transverse colon.
![Page 77: Dr. Fawzy Elnady Professor of Anatomy and Embryology ...scholar.cu.edu.eg/felnady/files/dig_105_2014.pdf · Faculty of Veterinary Medicine Cairo University ... Understand the clinical](https://reader031.vdocument.in/reader031/viewer/2022022804/5c949e6309d3f2c7468c7d38/html5/thumbnails/77.jpg)
Mostly within the thoracic cage.Shortest but widest.At base of cecum it turns left close to the stomach and liver and becomes the transverse.3 taeniae
Prof. Fawzy Elnady
Name features of the right dorsal colon, including location, size and taeniae number.
![Page 78: Dr. Fawzy Elnady Professor of Anatomy and Embryology ...scholar.cu.edu.eg/felnady/files/dig_105_2014.pdf · Faculty of Veterinary Medicine Cairo University ... Understand the clinical](https://reader031.vdocument.in/reader031/viewer/2022022804/5c949e6309d3f2c7468c7d38/html5/thumbnails/78.jpg)
Left ventral colon
Left dorsal colon
Prof. Fawzy Elnady
Which parts of the colon can be palpated per rectum?
![Page 80: Dr. Fawzy Elnady Professor of Anatomy and Embryology ...scholar.cu.edu.eg/felnady/files/dig_105_2014.pdf · Faculty of Veterinary Medicine Cairo University ... Understand the clinical](https://reader031.vdocument.in/reader031/viewer/2022022804/5c949e6309d3f2c7468c7d38/html5/thumbnails/80.jpg)
Diaphragmatic flexure
Prof. Fawzy Elnady
What is the flexure where the left dorsal colon turns right?
![Page 81: Dr. Fawzy Elnady Professor of Anatomy and Embryology ...scholar.cu.edu.eg/felnady/files/dig_105_2014.pdf · Faculty of Veterinary Medicine Cairo University ... Understand the clinical](https://reader031.vdocument.in/reader031/viewer/2022022804/5c949e6309d3f2c7468c7d38/html5/thumbnails/81.jpg)
Pelvic flexure
Prof. Fawzy Elnady
What flexure does the left ventral colon flex upon itself sharply and the diameter narrows.
![Page 82: Dr. Fawzy Elnady Professor of Anatomy and Embryology ...scholar.cu.edu.eg/felnady/files/dig_105_2014.pdf · Faculty of Veterinary Medicine Cairo University ... Understand the clinical](https://reader031.vdocument.in/reader031/viewer/2022022804/5c949e6309d3f2c7468c7d38/html5/thumbnails/82.jpg)
Sternal flexure
Prof. Fawzy Elnady
What is the flexure where the right ventral colon turns on itself to become left ventral
colon.
![Page 83: Dr. Fawzy Elnady Professor of Anatomy and Embryology ...scholar.cu.edu.eg/felnady/files/dig_105_2014.pdf · Faculty of Veterinary Medicine Cairo University ... Understand the clinical](https://reader031.vdocument.in/reader031/viewer/2022022804/5c949e6309d3f2c7468c7d38/html5/thumbnails/83.jpg)
At the caeco-colic junction at base cecum at the level
of last rib, running ventrally and cranially on right body wall and abdominal floor to the xiphoid area.
Prof. Fawzy Elnady
Where does the right ventral colon begin?
![Page 84: Dr. Fawzy Elnady Professor of Anatomy and Embryology ...scholar.cu.edu.eg/felnady/files/dig_105_2014.pdf · Faculty of Veterinary Medicine Cairo University ... Understand the clinical](https://reader031.vdocument.in/reader031/viewer/2022022804/5c949e6309d3f2c7468c7d38/html5/thumbnails/84.jpg)
Located dorsally and can be palpated per rectum.
Prof. Fawzy Elnady
How can the base of the cecum be palpated?
![Page 85: Dr. Fawzy Elnady Professor of Anatomy and Embryology ...scholar.cu.edu.eg/felnady/files/dig_105_2014.pdf · Faculty of Veterinary Medicine Cairo University ... Understand the clinical](https://reader031.vdocument.in/reader031/viewer/2022022804/5c949e6309d3f2c7468c7d38/html5/thumbnails/85.jpg)
Cecocolic fold
Prof. Fawzy Elnady
What attaches the body of the cecum to the right ventral colon?
![Page 86: Dr. Fawzy Elnady Professor of Anatomy and Embryology ...scholar.cu.edu.eg/felnady/files/dig_105_2014.pdf · Faculty of Veterinary Medicine Cairo University ... Understand the clinical](https://reader031.vdocument.in/reader031/viewer/2022022804/5c949e6309d3f2c7468c7d38/html5/thumbnails/86.jpg)
Pelvic inlet to diaphragmatic area.
4
Prof. Fawzy Elnady
Where does the cecum extend and how many taeniae ceci does it have?
![Page 87: Dr. Fawzy Elnady Professor of Anatomy and Embryology ...scholar.cu.edu.eg/felnady/files/dig_105_2014.pdf · Faculty of Veterinary Medicine Cairo University ... Understand the clinical](https://reader031.vdocument.in/reader031/viewer/2022022804/5c949e6309d3f2c7468c7d38/html5/thumbnails/87.jpg)
Longitudinal bands (taeniae coli) which are responsible for sacculations (haustra).
Prof. Fawzy Elnady
What are unique features of the large intestine that differentiate the horse from a dog or ox?
![Page 88: Dr. Fawzy Elnady Professor of Anatomy and Embryology ...scholar.cu.edu.eg/felnady/files/dig_105_2014.pdf · Faculty of Veterinary Medicine Cairo University ... Understand the clinical](https://reader031.vdocument.in/reader031/viewer/2022022804/5c949e6309d3f2c7468c7d38/html5/thumbnails/88.jpg)
Loops of jejunum
Prof. Fawzy Elnady
What can get strangulated at the epiploic foramen?
![Page 89: Dr. Fawzy Elnady Professor of Anatomy and Embryology ...scholar.cu.edu.eg/felnady/files/dig_105_2014.pdf · Faculty of Veterinary Medicine Cairo University ... Understand the clinical](https://reader031.vdocument.in/reader031/viewer/2022022804/5c949e6309d3f2c7468c7d38/html5/thumbnails/89.jpg)
Between the right lobe of liver and descending
duodenum, and between caudal vena cava and portal vein.
Prof. Fawzy Elnady
Describe the location of the epiploicforamen.
![Page 90: Dr. Fawzy Elnady Professor of Anatomy and Embryology ...scholar.cu.edu.eg/felnady/files/dig_105_2014.pdf · Faculty of Veterinary Medicine Cairo University ... Understand the clinical](https://reader031.vdocument.in/reader031/viewer/2022022804/5c949e6309d3f2c7468c7d38/html5/thumbnails/90.jpg)
Margo plicatus
Cardiac sphincter thick, enters obliqueTwo pyloric sphincters (cranial/caudal)
Prof. Fawzy Elnady
Characteristics of internal surface of stomach
![Page 91: Dr. Fawzy Elnady Professor of Anatomy and Embryology ...scholar.cu.edu.eg/felnady/files/dig_105_2014.pdf · Faculty of Veterinary Medicine Cairo University ... Understand the clinical](https://reader031.vdocument.in/reader031/viewer/2022022804/5c949e6309d3f2c7468c7d38/html5/thumbnails/91.jpg)
1. Mesentery
2. Lesser curvature
3. omentum
Prof. Fawzy Elnady
The peritoneal fold that attaches the intestine to the posterior abdominal wall is the
![Page 92: Dr. Fawzy Elnady Professor of Anatomy and Embryology ...scholar.cu.edu.eg/felnady/files/dig_105_2014.pdf · Faculty of Veterinary Medicine Cairo University ... Understand the clinical](https://reader031.vdocument.in/reader031/viewer/2022022804/5c949e6309d3f2c7468c7d38/html5/thumbnails/92.jpg)
1. cecum
2. appendix
3. rectum
Prof. Fawzy Elnady
Vermiform is a name given to the
![Page 93: Dr. Fawzy Elnady Professor of Anatomy and Embryology ...scholar.cu.edu.eg/felnady/files/dig_105_2014.pdf · Faculty of Veterinary Medicine Cairo University ... Understand the clinical](https://reader031.vdocument.in/reader031/viewer/2022022804/5c949e6309d3f2c7468c7d38/html5/thumbnails/93.jpg)
1. choledochus
2. Ductus choledochus
3. cholecyst
Prof. Fawzy Elnady
Another name for the gallbladder is
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1. chyle
2. bile
3. chyme
Prof. Fawzy Elnady
The fluid secreted by the liver and poured into the intestines is called
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4
How mane taeniae are at the pelvic flexure?
How can the base of the cecum be palpated?
Where does the right ventral colon begin?
How many taeniae does the left ventral colon have?
Prof. Dr. Fawzy Elnady Email: [email protected]
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1. cecum
2. appendix
3. rectum
Prof. Dr. Fawzy Elnady Email: [email protected]
Vermiform is a name given to the
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Its poorly attached to the body wall. Secured only at the cecal base and transverse colon. The rest is freely moveable and susceptible to volvulus
Prof. Dr. Fawzy Elnady Email: [email protected]
What problems can you see associated with the large colon?
![Page 98: Dr. Fawzy Elnady Professor of Anatomy and Embryology ...scholar.cu.edu.eg/felnady/files/dig_105_2014.pdf · Faculty of Veterinary Medicine Cairo University ... Understand the clinical](https://reader031.vdocument.in/reader031/viewer/2022022804/5c949e6309d3f2c7468c7d38/html5/thumbnails/98.jpg)
Funnel shaped and short.
Prof. Dr. Fawzy Elnady Email: [email protected]
Why do you sometimes see blockage in the transverse colon?
![Page 99: Dr. Fawzy Elnady Professor of Anatomy and Embryology ...scholar.cu.edu.eg/felnady/files/dig_105_2014.pdf · Faculty of Veterinary Medicine Cairo University ... Understand the clinical](https://reader031.vdocument.in/reader031/viewer/2022022804/5c949e6309d3f2c7468c7d38/html5/thumbnails/99.jpg)
Pelvic flexure
Prof. Dr. Fawzy Elnady Email: [email protected]
Which site is the most dangerous in terms of blockage?
![Page 100: Dr. Fawzy Elnady Professor of Anatomy and Embryology ...scholar.cu.edu.eg/felnady/files/dig_105_2014.pdf · Faculty of Veterinary Medicine Cairo University ... Understand the clinical](https://reader031.vdocument.in/reader031/viewer/2022022804/5c949e6309d3f2c7468c7d38/html5/thumbnails/100.jpg)
Enlarged cranial part of base falls over cranioventrallyand blocks the ceco-colic orface. Trocarization needs to be done.
Prof. Dr. Fawzy Elnady Email: [email protected]
Why do you sometimes see impaction at the ceco-colic opening? What do you do to fix?
![Page 101: Dr. Fawzy Elnady Professor of Anatomy and Embryology ...scholar.cu.edu.eg/felnady/files/dig_105_2014.pdf · Faculty of Veterinary Medicine Cairo University ... Understand the clinical](https://reader031.vdocument.in/reader031/viewer/2022022804/5c949e6309d3f2c7468c7d38/html5/thumbnails/101.jpg)
The ileum telescopes into the cecum (intussusception). Surgical remedy.
Prof. Dr. Fawzy Elnady Email: [email protected]
Why do you sometimes see impaction (or peristasis) at the ileo-cecal opening? How would you fix this?
![Page 102: Dr. Fawzy Elnady Professor of Anatomy and Embryology ...scholar.cu.edu.eg/felnady/files/dig_105_2014.pdf · Faculty of Veterinary Medicine Cairo University ... Understand the clinical](https://reader031.vdocument.in/reader031/viewer/2022022804/5c949e6309d3f2c7468c7d38/html5/thumbnails/102.jpg)
Thick walled.
Prof. Dr. Fawzy Elnady Email: [email protected]
Why do you sometimes see impaction at the ileum?
![Page 103: Dr. Fawzy Elnady Professor of Anatomy and Embryology ...scholar.cu.edu.eg/felnady/files/dig_105_2014.pdf · Faculty of Veterinary Medicine Cairo University ... Understand the clinical](https://reader031.vdocument.in/reader031/viewer/2022022804/5c949e6309d3f2c7468c7d38/html5/thumbnails/103.jpg)
Gastro-duodeno-jejunitis (side to side anastomoses
of descending duodenum to base of the cecum)
Prof. Dr. Fawzy Elnady Email: [email protected]
When would a duodeno-cecostomyneed to be performed?
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Duodenocecostomy
Long great mesenteryIleumIleo-cecal openingCeco-colic openingPelvic flexureTransverse colon
Prof. Dr. Fawzy Elnady Email: [email protected]
Potential areas of intestinal obstruction.
![Page 105: Dr. Fawzy Elnady Professor of Anatomy and Embryology ...scholar.cu.edu.eg/felnady/files/dig_105_2014.pdf · Faculty of Veterinary Medicine Cairo University ... Understand the clinical](https://reader031.vdocument.in/reader031/viewer/2022022804/5c949e6309d3f2c7468c7d38/html5/thumbnails/105.jpg)
Funnel shaped (risk of impaction)
Attached to roof of body cavity.2 taeniae.
Prof. Dr. Fawzy Elnady Email: [email protected]
Name features of the transverse colon.
![Page 106: Dr. Fawzy Elnady Professor of Anatomy and Embryology ...scholar.cu.edu.eg/felnady/files/dig_105_2014.pdf · Faculty of Veterinary Medicine Cairo University ... Understand the clinical](https://reader031.vdocument.in/reader031/viewer/2022022804/5c949e6309d3f2c7468c7d38/html5/thumbnails/106.jpg)
Mostly within the thoracic cage.Shortest but widest.At base of cecum it turns left close to the stomach and liver and becomes the transverse.3 taeniae
Prof. Dr. Fawzy Elnady Email: [email protected]
Name features of the right dorsal colon, including location, size and taeniae number.
![Page 107: Dr. Fawzy Elnady Professor of Anatomy and Embryology ...scholar.cu.edu.eg/felnady/files/dig_105_2014.pdf · Faculty of Veterinary Medicine Cairo University ... Understand the clinical](https://reader031.vdocument.in/reader031/viewer/2022022804/5c949e6309d3f2c7468c7d38/html5/thumbnails/107.jpg)
Left ventral colon
Left dorsal colon
Prof. Dr. Fawzy Elnady Email: [email protected]
Which parts of the colon can be palpated per rectum?
![Page 109: Dr. Fawzy Elnady Professor of Anatomy and Embryology ...scholar.cu.edu.eg/felnady/files/dig_105_2014.pdf · Faculty of Veterinary Medicine Cairo University ... Understand the clinical](https://reader031.vdocument.in/reader031/viewer/2022022804/5c949e6309d3f2c7468c7d38/html5/thumbnails/109.jpg)
Diaphragmatic flexure
Prof. Dr. Fawzy Elnady Email: [email protected]
What is the flexure where the left dorsal colon turns right?
![Page 110: Dr. Fawzy Elnady Professor of Anatomy and Embryology ...scholar.cu.edu.eg/felnady/files/dig_105_2014.pdf · Faculty of Veterinary Medicine Cairo University ... Understand the clinical](https://reader031.vdocument.in/reader031/viewer/2022022804/5c949e6309d3f2c7468c7d38/html5/thumbnails/110.jpg)
Pelvic flexure
Prof. Dr. Fawzy Elnady Email: [email protected]
What flexure does the left ventral colon flex upon itself sharply and the diameter narrows.
![Page 111: Dr. Fawzy Elnady Professor of Anatomy and Embryology ...scholar.cu.edu.eg/felnady/files/dig_105_2014.pdf · Faculty of Veterinary Medicine Cairo University ... Understand the clinical](https://reader031.vdocument.in/reader031/viewer/2022022804/5c949e6309d3f2c7468c7d38/html5/thumbnails/111.jpg)
Sternal flexure
Prof. Dr. Fawzy Elnady Email: [email protected]
What is the flexure where the right ventral colon turns on itself to become left ventral
colon.
![Page 112: Dr. Fawzy Elnady Professor of Anatomy and Embryology ...scholar.cu.edu.eg/felnady/files/dig_105_2014.pdf · Faculty of Veterinary Medicine Cairo University ... Understand the clinical](https://reader031.vdocument.in/reader031/viewer/2022022804/5c949e6309d3f2c7468c7d38/html5/thumbnails/112.jpg)
At the caeco-colic junction at base cecum at the level
of last rib, running ventrally and cranially on right body wall and abdominal floor to the xiphoid area.
Prof. Dr. Fawzy Elnady Email: [email protected]
Where does the right ventral colon begin?
![Page 113: Dr. Fawzy Elnady Professor of Anatomy and Embryology ...scholar.cu.edu.eg/felnady/files/dig_105_2014.pdf · Faculty of Veterinary Medicine Cairo University ... Understand the clinical](https://reader031.vdocument.in/reader031/viewer/2022022804/5c949e6309d3f2c7468c7d38/html5/thumbnails/113.jpg)
Located dorsally and can be palpated per rectum.
Prof. Dr. Fawzy Elnady Email: [email protected]
How can the base of the cecum be palpated?
![Page 114: Dr. Fawzy Elnady Professor of Anatomy and Embryology ...scholar.cu.edu.eg/felnady/files/dig_105_2014.pdf · Faculty of Veterinary Medicine Cairo University ... Understand the clinical](https://reader031.vdocument.in/reader031/viewer/2022022804/5c949e6309d3f2c7468c7d38/html5/thumbnails/114.jpg)
Cecocolic fold
Prof. Dr. Fawzy Elnady Email: [email protected]
What attaches the body of the cecum to the right ventral colon?
![Page 115: Dr. Fawzy Elnady Professor of Anatomy and Embryology ...scholar.cu.edu.eg/felnady/files/dig_105_2014.pdf · Faculty of Veterinary Medicine Cairo University ... Understand the clinical](https://reader031.vdocument.in/reader031/viewer/2022022804/5c949e6309d3f2c7468c7d38/html5/thumbnails/115.jpg)
Pelvic inlet to diaphragmatic area.
4
Prof. Dr. Fawzy Elnady Email: [email protected]
Where does the cecum extend and how many taeniae ceci does it have?
![Page 116: Dr. Fawzy Elnady Professor of Anatomy and Embryology ...scholar.cu.edu.eg/felnady/files/dig_105_2014.pdf · Faculty of Veterinary Medicine Cairo University ... Understand the clinical](https://reader031.vdocument.in/reader031/viewer/2022022804/5c949e6309d3f2c7468c7d38/html5/thumbnails/116.jpg)
Longitudinal bands (taeniae coli) which are responsible for sacculations (haustra).
Prof. Dr. Fawzy Elnady Email: [email protected]
What are unique features of the large intestine that differentiate the horse from a dog or ox?
![Page 117: Dr. Fawzy Elnady Professor of Anatomy and Embryology ...scholar.cu.edu.eg/felnady/files/dig_105_2014.pdf · Faculty of Veterinary Medicine Cairo University ... Understand the clinical](https://reader031.vdocument.in/reader031/viewer/2022022804/5c949e6309d3f2c7468c7d38/html5/thumbnails/117.jpg)
Loops of jejunum
Prof. Dr. Fawzy Elnady Email: [email protected]
What can get strangulated at the epiploic foramen?
![Page 118: Dr. Fawzy Elnady Professor of Anatomy and Embryology ...scholar.cu.edu.eg/felnady/files/dig_105_2014.pdf · Faculty of Veterinary Medicine Cairo University ... Understand the clinical](https://reader031.vdocument.in/reader031/viewer/2022022804/5c949e6309d3f2c7468c7d38/html5/thumbnails/118.jpg)
Between the right lobe of liver and descending
duodenum, and between caudal vena cava and portal vein.
Prof. Dr. Fawzy Elnady Email: [email protected]
Describe the location of the epiploicforamen.
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Mostly on left dorsal part of abdomen.
(loose coils mixed with coils of small colon)
Prof. Dr. Fawzy Elnady Email: [email protected]
Where is the jejunoileum?
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Gastrophrenic ligament
Gastrosplenic ligamentIenorenal (renosplenic) ligament
Prof. Dr. Fawzy Elnady Email: [email protected]
What are three ligaments of the greater omentum?
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Margo plicatus
Cardiac sphincter thick, enters obliqueTwo pyloric sphincters (cranial/caudal)
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Characteristics of internal surface of stomach
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Why do you sometimes see impaction (or peristasis) at
the ileo-cecal opening? How would you fix this?
Do you ever see impaction in the cecum?
Why do you sometimes see blockage in the transverse colon?
Why do you sometimes see impaction at the ileum?
Prof. Dr. Fawzy Elnady Email: [email protected]
The ileum telescopes into the cecum (intussusception). Surgical remedy.
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a. 50-80 ml depending on the animal’s size.
b. ……. ml depending on the animal’s size.
c. …...... ml depending on the animal’s size.
Prof. Dr. Fawzy Elnady Email: [email protected]
Stomach capacity is:
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1. Diaphragm
2. Stomach
3. Spleen
4. Duodenum.
Prof. Dr. Fawzy Elnady Email: [email protected]
The falciform ligament attaches the liver to the:
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1. Mesentery
2. Lesser curvature
3. omentum
Prof. Dr. Fawzy Elnady Email: [email protected]
The peritoneal fold that attaches the intestine to the posterior abdominal wall is the
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1. cecum
2. appendix
3. rectum
Prof. Dr. Fawzy Elnady Email: [email protected]
Vermiform is a name given to the
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1. choledochus
2. Ductus choledochus
3. cholecyst
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Another name for the gallbladder is
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1. chyle
2. bile
3. chyme
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The fluid secreted by the liver and poured into the intestines is called