1. Homeostasis
1 2
Positive Feedback Mechanisms
Review:
3 4
The Language of Anatomy & Directional
Anatomical Position Terms
• Universally accepted terminology • Also…
to identify body parts, regions, and – Cranial =
direction Superior
– Caudal = Inferior
– Intermediate
• Anatomical position:
– Superficial
– Forward-facing
– Deep
– Upright
– Feet slightly apart
– Upturned palms (facing you)
5 6
1

2. Body Planes & Sections
Sagittal
Median or Midsagittal
Transverse or
Horizontal
Frontal or Coronal
7 8
Organization of the Human Body
• Axial & Appendicular
portion
• Body Cavities
• Membranes
9 10
Body Cavities (Lateral View) Body Cavities (Anterior View)
Cranial Cranial
Cavity Cavity
Vertebral
Cavity
Thoracic Mediastinum
Thoracic
Cavity Cavity Pleural
Pericardial
Cavity
Diaphragm
Diaphragm
Vertebral Abdominal Abdominal
Cavity Cavity Cavity
Pelvic Pelvic
Cavity Cavity
11 12
2

3. Thoracic and Abdominopelvic
Membranes/ Serous Membranes
Membranes
• Soft, thin, pliable
double-layer of tissue
Thoracic Cavity Pericardial Abdominopelvic
that covers organs or
Cavity Cavity
lines body cavities
Visceral Pleura Visceral Visceral
• Cavity lining = parietal
Pericardium Peritoneum
serosa
• Organ lining = visceral Pleural Cavity Pericardial Cavity Peritoneal Cavity
serosa
• Serous fluid Parietal Pleura Parietal Parietal Peritoneum
Pericardium
13 14
Example: Thoracic Membranes Abdominopelvic Quadrants
Visceral Pleura
Visceral Pericardium
Parietal Pleura
Parietal Pericardium 15 16
Abdominopelvic Regions Other Body Cavities
17 18
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