Chapter 40 Homeostasis

Chapter 40 Homeostasis - Chapter 40: Physiology,...

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I. From cell to organ system a. Cell tissue organs organ systems organism There are 4 types of tissue II. EPITHELIAL: cover body and line organs a. Squamous: i. Cell structure: flat. ii. Function: form permeable boundaries iii. Location: skin and gut lining. b. Cuboidal: i. Cell structure: cube-shaped ii. Function: transport and secretion iii. Location: lining of ducts (i.e. kidney follicles) c. Columnar: i. Cell structure: tall and narrow ii. Function: transport iii. Location: lining of respiratory tract, small intestine ***Apical v Basal d. Apical: face the air (lumen = empty space) of the gut; may bear cilia or folds. e. Basal: inner surface III. CONNECTIVE: cells embedded in extracellular matrix (ECM); differ by the type of protein fiber in ECM. a. Adipose: (fat tissue) energy, cushion, and insulation b. Elastin: found in stretchable tissue (i.e. blood vessels and lungs) c. Collagen: (varies in density) tendons, ligaments, cartilage and bones. IV.
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This note was uploaded on 04/19/2011 for the course LS 2 taught by Professor Pires during the Spring '08 term at UCLA.

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Chapter 40 Homeostasis - Chapter 40: Physiology,...

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