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THIS DOCUMENT COVERS THE LECTURES TAUGHT IN PREPERATION FOR THE FIRST MIDTERM
Typology: Lecture notes
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Topic 1A: Structural Organization of the Human Body 1.1 Define anatomy and physiology and describe their subdivision ● Anatomy: study of the structure of body parts and their relationship to one another
Define epithelial tissue; list 6 functions associated with epithelia Epithelial tissue: sheet of cells that covers body surface or cavities
Distinguishing characteristics of epithelia:
Action potential: reversal of membrane potential. Only occurs in excitable cells and generated in the axon. Depolarization is followed by repolarization. The stimulus changes the membrane's permeability by opening voltage-gated channels activated by graded potentials.
Excitation-Contraction Coupling: transmission of AP along the sarcolemma causes myofilaments to slide. Rise in intracellular calcium ions leads to sliding of filaments.