HTHSCI 1H06 Lecture Notes - Lecture 1: Tonicity, Osmosis, Homeostasis
24 Oct 2018
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Isotonic: equal solute solution, h2o in and out. Directional terms: distal (distant, for limbs), proximal (closer, for limbs), superior (above), inferior (below), super cial (close to skin), deep (farther from skin), medial (closer to median), lateral (farther from median), visceral (organ), parietal (body wall) Flexion (smaller) and extension (stretching out larger) Abdominal quadrants: 1=right upper quadrant 2= left upper quadrant 3= right lower quadrant 4=left lower quadrant. Mediastinum: region of the thorax between the lungs. Organs that move are pushed into body cavities (potential spaces, can ll with uid and restrict movement of organs), not contained in cavities. Peritoneal cavity (gi tract and reproductive organs) Axial: head, neck and trunk (vertebrae, sternum, ribs, sacrum, skull) principal supportive structure. Appendicular: everything else (upper and lower limbs, shoulders) allow for freedom of movement. Autonomic nervous system is dedicated to this process. All cells and organs participate in maintaining internal constancy (acceptable range of values, that keep systems running normally)
