Chapter1b

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Chapter1b

  1. 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. 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. 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 3

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