Muscle spindles :-a- are found in all skeletal musclesb- are found only in large skeletal musclesc- consist of small numbers of extrafusal muscle fibersd- consist of a large number of extrafusal muscle fibers

Muscle spindles :-a- are found in all skeletal musclesb- are found only in large skeletal musclesc- consist of small numbers of extrafusal muscle fibersd- consist of a large number of extrafusal muscle fibers

Body Structures & Functions

12th Edition

ISBN:9781285695495

Author:Scott

Publisher:Scott

Chapter7: Muscular System

Section: Chapter Questions

Problem 4RQ

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Concept explainers

Muscle Action

A change in the body or a bodily organ as a result of its functioning is referred to as an action. Muscle action can be defined as the specific movement of a bodily part generated by the contraction of a muscle. The muscle proteins actin and myosin are the important contractile proteins involved in muscle action. Muscle contraction, in addition to movement, serves several other important functions in the body, including posture, heat generation, and joint stability. Muscle contraction maintains posture, which includes standing and sitting.

Question

Muscle spindles :-
a- are found in all skeletal muscles
b- are found only in large skeletal muscles
c- consist of small numbers of extrafusal muscle fibers
d- consist of a large number of extrafusal muscle fibers

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