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Figure 2.38

NASM 4th Edition: Chapter 2- Figure 2.38 Excitation-Contraction Coupling

QuestionAnswer
ACH released to binding receptors, Steps in the initiation of a contraction: Step 1
Action reaches T tubule Steps in the initiation of a contraction: Step 2
sacroplasmic reticulum releases CA2t Steps in the initiation of a contraction: Step 3
active site exposure cross-bridge binding (actin and myosin overlap), Steps in the initiation of a contraction: Step 4
z lines get shorter, contraction begins Steps in the initiation of a contraction: Step 5
ACH removed by ACHE, Steps that end the contraction: Step 1
sarcoplasmic reticulum recaptures CA2t, Steps that end the contraction: Step 2
active site covered, so there is no cross bridge interaction between actin and myosin, Steps that end the contraction: Step 3
contraction ends, Steps that end the contraction: Step 4
relaxation occurs passive return to resting length Steps that end the contraction: Step 5
Created by: southerngirl