APK 2105C Lecture Notes - Lecture 1: Fluid Compartments, Semipermeable Membrane, Epithelium
11 Dec 2016
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Document Summary
Neurons: specialized to transmit information via electrical signals branches send or receive signals. Functions: communication and control; sensory, integral, motor four classes of tissue include nervous, muscle, epithelium, connective. Applied physiology: how structure and function are integrally related. Need to obtain nutrients and rid waste. Neuroglia: support cells (for environment of neurons for them to function) Skeletal= proteins cause striations that overlap, slide back/forth for contractions. Smooth= walls hollow organs, no striations (bladder, blood vessel, digestive) Sheet-like arrangement of cells with underlying basement membrane of ct stratified (multiple layers for more protection) or simple different shapes of cells forms glands (exocrine used locally) lumen of secretory cells accumulates secretion and moves it up through duct. One layer of epithelial tissue separates internal from external environments. When food crosses epithelial barrier, only then is it inside the body. Fluid compartments in body are separated by semipermeable membranes (separate ecf and.
