chapter1b
DESCRIPTION
Spring 2010 chapter 1b PowerPoint for BIOL2401 (Human Anatomy & Physiology) at San Antonio College with Alba.TRANSCRIPT
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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 orHorizontal
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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)
CranialCavity
VertebralCavity
Pelvic
Cavity
AbdominalCavity
Diaphragm
Pleural
Pericardial Cavity
ThoracicCavity
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