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Homeostasis
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Positive Feedback Mechanisms
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Review:
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The Language of Anatomy &
Anatomical Position
• Universally accepted terminology
to identify body parts, regions, and
direction
• Anatomical position:
– Forward-facing
– Upright
– Feet slightly apart
– Upturned palms (facing you)
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Directional
Terms
• Also…
– Cranial =
Superior
– Caudal = Inferior
– Intermediate
– Superficial
– Deep
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Body Planes & Sections
Frontal or Coronal
Sagittal
Median or Midsagittal
Transverse or
Horizontal
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Organization of the Human Body
• Axial & Appendicular
portion
• Body Cavities
• Membranes
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Body Cavities (Lateral View)
Cranial
Cavity
Vertebral
Cavity
Thoracic
Cavity
Diaphragm
Abdominal
Cavity
Pelvic
Cavity
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Body Cavities (Anterior View)
Cranial
Cavity
Vertebral
Cavity
Pelvic
Cavity
Abdominal
Cavity
Diaphragm
Pleural
Pericardial
Cavity
Thoracic
Cavity
Mediastinum
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Membranes/ Serous Membranes
• Soft, thin, pliable
double-layer of tissue
that covers organs or
lines body cavities
• Cavity lining = parietal
serosa
• Organ lining = visceral
serosa
• Serous fluid
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Thoracic and Abdominopelvic
Membranes
Thoracic Cavity Pericardial
Cavity
Abdominopelvic
Cavity
Visceral Pleura Visceral
Pericardium
Visceral
Peritoneum
Pleural Cavity Pericardial Cavity Peritoneal Cavity
Parietal Pleura Parietal
Pericardium
Parietal Peritoneum
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Example: Thoracic Membranes
Visceral Pericardium
Parietal Pericardium
Visceral Pleura
Parietal Pleura
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Abdominopelvic Quadrants
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Abdominopelvic Regions
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Other Body Cavities
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