Concept explainers
a.
To determine: The name that is used to describe the distal attachment.
Introduction: A muscle tissue is a well-vascularized soft tissue present in the muscles of animal body. A muscle tissue consists of specialized cells called myocytes (contains contractile proteins) that are generally attached with bones, which enables the movement of the various parts of the body.
a.

Explanation of Solution
Insertion is the name that is used to describe the distal attachment. Insertion does move toward the origin during the contraction of the muscle and is usually distal or farther away to the body.
b.
To determine: The name that is used for the proximal attachment.
b.

Explanation of Solution
Origin is the name used for the proximal attachment. The origin is the stable attachment and it does not move during the muscle contraction. This attachment is always proximal or closer to the body. The movement of origin toward insertion is called as reverse muscle action.
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