1 biology 102 laboratory 5 veins human/cat gross anatomy histology

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Biology 102

Laboratory 5

Veins

Human/Cat Gross Anatomy

Histology

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Review of vessels

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Review of vessels

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Review of vessels

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Review of vessels

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Review of last lab’s vessels

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Review of last lab’s vessels

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Review of last lab’s vessels

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Review of last lab’s vessels

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Review of last lab’s vessels

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Review of last lab’s vessels

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Objectives for Lab 5

• Identify the veins listed below in a human model or photograph of a human.

• Identify the veins listed below on a dissected cat or photograph of a cat.

• Describe the layers/tunics and histological characteristics of veins.

• Trace the path of a drop of blood through the arteries AND veins, including the heart and pulmonary circulation.

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Comparison of Walls of Arteries and Veins

Smooth muscle of the tunica media in both arteries and veins is innervated by the sympathetic nervous system.

Figure from: Hole’s Human A&P, 12th edition, 2010

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Major Vessels of the Venous SystemFigure from: Hole’s Human A&P, 12th edition, 2010

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Major Veins of the Brain, Head, and Neck

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External jugular v. drains blood from face, scalp, and superficial neck regions

Figure from: Hole’s Human A&P, 12th edition, 2010

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Major Veins of the Brain, Head, and Neck

Figure from: Martini, Anatomy & Physiology, Prentice Hall, 2001

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Location of Internal and External Jugular V.

External Jugular v.

Internal Jugular v.

SCM

Figure from: Anatomy & Physiology Revealed, 2010

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Major Veins - Upper Limb and Shoulder

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Median cubital vein is often used to draw blood (venipuncture)*

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(deep)

(superficial)

(superficial)

Figure from: Hole’s Human A&P, 12th edition, 2010

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Major Veins - Upper Limb and Shoulder

Figure from: Martini, Anatomy & Physiology, Prentice Hall, 2001

Note the deep veins (radial, ulnar, brachial) and the superficial veins (cephalic, basilic, median cubital) of the upper limb

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Veins That Drain the Abdominal Viscera

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Figure from: Martini, Anatomy & Physiology, Prentice Hall, 2001

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Main Veins of the Lower Limb and Pelvis*

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Figure from: Hole’s Human A&P, 12th edition, 2010

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Cat Blood Vessel Dissection Schedule

• Blood vessel labs– Dissection 1(1st lab - arteries above diaphragm and

upper limb)• Preparing the cat (see page 706 in Marieb)

• Cardiovascular (pp. 733-741 in Marieb)

– Dissection 2 (last lab - arteries below diaphragm and lower limbs)

• Arteries below diaphragm (see Marieb)

– Dissection 3 (today - all veins; review arteries)• Veins (see Marieb)

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Reminders for Cat Dissection

• You must wear gloves and goggles for this lab!

• ABSOLUTELY NO FOOD OR DRINK

• Be EXTREMELY careful when using the scalpels– Keep your index finger on the top of the blade

– Be careful not to inadvertently cut structures

• Use a blunt probe, or your gloved fingers to dissect away tissue. Use the scalpel ONLY for initial cutting. Proceed S-L-O-W-L-Y.

• Discard scraps/liquid into the appropriate container

• Gloves, paper towels, plastic bags -> regular trash

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Continuing with Cat Dissection…

• Work in groups you formed for dissection of arteries• Get some paper towels and keep them at your lab table• Get your instruments and dissecting tray (large trays in the

front of the lab) ready• Get a cat and cut open the sealed bag but don’t discard the

fluid; you’ll be using this cat all semester and replacing the fluid each time.

• Let the cat out of the bag - again! • You should be able to locate all the veins listed in your Lab

Guide

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Left ventricle of heart

Aorta

Right ventricle of heart

Right atrium of heart

Superior vena cava

Right subclavian artery

Right brachiocephalic vein

Right subclavian vein

Right common carotid artery

Right external jugular vein

Left common carotid artery

Left external jugular vein

Left subclavian vein

Left brachiocephalic vein

Left subclavian arteryBrachiocephalic artery

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Transverse jugular vein

External jugular veins

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Esophagus

Descending aorta

Left atrium

Pulmonary trunk

Aortic arch

Left subclavian artery

Diaphragm

Left ventricle

Right ventricle

Ascending aorta

Brachiocephalic artery

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Hepatic portal vein

DuodenumPancreas

Superior mesenteric vein

Spleen

Gastrosplenic vein

Inferior mesenteric vein

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Gonadal artery

Descending aorta

Left adrenolumbar artery

Celiac trunk

Inferior mesenteric artery

Inferior vena cava

Renal vein

Superior mesenteric artery

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Uterine horn

Inferior vena cava

Kidney

Colon

Superior mesenteric artery

Inferior vena cava

Celiac trunk

Descending aorta

Left renal vein

Left renal artery

Left gonadal (ovarian) vein

Left ureter

Left gonadal (ovarian) arteryLeft ovary

Left iliolumbar artery

Left iliolumbar vein

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Right gonadal vein

Iliolumbar vein

Right femoral vein

Common iliac vein

Left gonadal vein

Renal vein

Left adrenolumbar vein

Inferior vena cava

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Left gonadal vein

Descending aorta

Renal vein

Left kidney

Inferior vena cava

Right kidney

Gonadal artery

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Inferior vena cava

Descending aorta

Internal iliac artery

External iliac artery

Left femoral vein

Left femoral artery

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Great saphenous vein

Left external iliac vein

Left internal iliac vein

Left common iliac vein

Inferior vena cava

Iliolumbar vein

Right common iliac vein

Right internal iliac vein

Right external iliac vein

Femoral vein

Deep femoral vein

Median sacral vein

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Things you should do in lab today

• Examine the vein slide under the microscope– Name/identify the layers of the vein– Describe how each layer (tunic) is constructed– Refer to Marieb’s Lab Manual Figure 32.2 right side

• Perform cat dissection of veins listed for Lab 5. See Marieb’s Lab manual pp. 737-741 for instructions.

• Review human veins listed for Lab 5• Complete Lab 5 Assignment on a separate sheet of

paper, put your name on it, and hand it in today.– Use figures 32.8 – 32.15 as a guide

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Next Lab…

• Blood Pressure– Read ahead: Exercise 33 in Marieb’s Lab Manual– Review the handout (available online)

• ECG (EKG)– Read ahead: Exercise 31 in Marieb’s Lab Manual– Review the handout (available online – same one as

for BP)

• Wear comfortable clothes/shoes since you’ll be exercising!