ncreasing preload __________ ventricular contractility. decreases has no effect on increases
ncreasing preload __________ ventricular contractility. decreases has no effect on increases
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
ncreasing preload __________ ventricular contractility.
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decreases |
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has no effect on |
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increases |
Expert Solution
Step 1
Preload is the stretching of the cardiac muscles (sarcomere) before contraction. It is directly related to the end of the ventricular filling during diastole. While ventricular contractability is the intrinsic property of a cardiac muscle to contact and relax.
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