levels of organization organ systems of the body
TRANSCRIPT
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Levels of Organization
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Organ Systems of the Body
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Anatomical Landmarks
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Anatomical Landmarks
Common Term
1. Cranial Skull
2. Cervical Neck
3. Acromial Shoulder
4. Thoracic Chest
5. Abdominal Belly
6. Gluteal Buttock
7. Inguinal Groin
8. Axillary Armpit
9. Brachial Arm
10. Olecranon / Antecubital
Elbow (back) / Fossa (front)
11. Antebrachium Forearm
12. Carpal Wrist
13. Manual Hand
14. Digits (Phalanges) Fingers
15. Femoral Thigh
16. Patellar Knee (front)
17. Popliteal Back of knee
18. Crural Leg (front)
19. Sural Calf (back)
20. Tarsal Ankle
Selected anatomical regions and commonly
used “layperson’s” terminology.
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Abdominopelvic Quadrants and Regions
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Sectional Planes
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1. Frontal (Coronal) plane
Sectional Anatomy
Three sectional planes
3. Transverse (Horizontal) plane
2. Sagittal plane (mid- and para-)
Longitudinal
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Body Cavities
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Anterior(Ventral)
Posterior(Dorsal)
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Dorsal Body Cavity
1. Cranial Cavity
Contains the brain and CSF.
Protects this delicate tissue.
2. Spinal Cavity
Contains the spinal cord and CSF.
Protects this delicate tissue.
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Ventral Body Cavity
1. Thoracic Cavity
Contains:
a) Plural cavities (lungs inside).
b) Mediastinum
i) Pericardial cavity (heart).
2. Abdominopelvic Cavity
Contains: stomach, intestines, gallbladder,
liver, spleen, bladder, reproductive organs.
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B. Pericardium - lines the pericardial cavity.
Mediastinum Contains:
Heart, thymus, trachea, esophagus, vessels (aorta), nerves.
A. Pleura - membrane lining the pleural cavities.
Serous Membranes - line ventral body cavities, has 2 portions:
VisceralParietal
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Peritoneum - lines the peritoneal cavity (this is inside the abdominal cavity).
The Abdominopelvic cavity contains the Peritoneal cavity
Mesenteries - support and stabilize the
digestive organs in abdominal cavity.
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Directional References
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The relative position and orientation of the scans shown in parts b-d.