When given an image of a cardiac contractile cell, such as the one below, describethe steps that occur during excitation-contraction coupling (the "before step 1" stepshow with the squiggly red arrow below), contraction (steps 1-6 below) ANDrelaxation (steps 7-10 belowl). Be sure to fully describe the role of Ca¹² ATPase andNa+Ca+2 exchanger (NCX) in steps 9 and 101ECFICFSRCa2+RyRCat sparksCa signalContractionCachannelT-tubule2 KATPATP3 NaCa²+Sarcoplasmic reticulumCat stores(SR)3 Nat CaNCXRelaxationCa2+ActinMyosin

The cardiac action potential is a change in voltage across the cell membrane of heart cells.This is…

Answered: .When given an image of a cardiac…

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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