24. When given an image of a cardiac contractile cell, such as the one belo describe the steps that occur during excitation-contraction coupling (the "before op 1" step show with the squiggly red arrow below), contraction (steps 1-6 below) AND relaxation (steps 7-10 belowl). Be sure to fully describe the role of Ca*2 ATPase and Na Ca+2 exchanger (NCX) in steps 9 and 101 ECF ICF SR Ca2+ RyR 1. Ca sparks Ca signal Contraction Ltype Ca channel 2 K ATP ATP 3 Na 3 Nat Ca Sarcoplasmic reticulum (SR) Cal stores TALL NCX Relaxation Ca2+ oe FI Actin Myosin
24. When given an image of a cardiac contractile cell, such as the one belo describe the steps that occur during excitation-contraction coupling (the "before op 1" step show with the squiggly red arrow below), contraction (steps 1-6 below) AND relaxation (steps 7-10 belowl). Be sure to fully describe the role of Ca*2 ATPase and Na Ca+2 exchanger (NCX) in steps 9 and 101 ECF ICF SR Ca2+ RyR 1. Ca sparks Ca signal Contraction Ltype Ca channel 2 K ATP ATP 3 Na 3 Nat Ca Sarcoplasmic reticulum (SR) Cal stores TALL NCX Relaxation Ca2+ oe FI Actin Myosin
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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Question
Transcribed Image Text:24. When given an image of a cardiac contractile cell, such as the one belo describe
the steps that occur during excitation-contraction coupling (the "before op 1" step
show with the squiggly red arrow below), contraction (steps 1-6 below) AND
relaxation (steps 7-10 belowl). Be sure to fully describe the role of Ca*2 ATPase and
Na Ca+2 exchanger (NCX) in steps 9 and 101
ECF
ICF
SR
Ca2+
RyR
1.
Ca sparks
Ca signal
Contraction
Ltype
Ca
channel
2 K
ATP
ATP
3 Na
3 Nat Ca
Sarcoplasmic reticulum
(SR)
Cal stores
TALL
NCX
Relaxation
Ca2+
oe
FI
Actin
Myosin
Expert Solution
Step 1
The muscle contraction in the cardiac muscles depends on actin and myosin introduction. Calcium ions are very much important in this interactions. The given image represent the molecular events of muscle contraction in cardiac muscles.
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