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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What is the joint movement at the trunk?. What type of contraction that is controlling this joint movement? What muscles are controlling the trunk movement?

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Introduction:

The muscles form the body's core. As a result, having strong muscles results in a stable core from which muscles may contract. Most muscles in the body have a proximal and a distal connection; these proximal attachments are frequently on the spine. When a muscle exhibit contraction, it exerts a pulling force on both of its attachments that is oriented toward the center of the muscle.

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