Locomotion and MovementHard

Question

Which one of the following is the correct pairing of a body part and the kind of muscle tissue that moves it ?

Options

A.Heart wall - Involuntary unstriated muscle
B. Biceps of upper arm - Smooth muscle fibres
C.Abdominal wall - Smooth muscle
D.Iris - Involuntary Smooth muscle

Solution

Smooth muscle are plain, non-striated, involuntary of unstriped muscles due to absence of striations. These occur in the walls of hollow internal organs, in capsules of lymph glands, spleen, etc, in iris and ciliary body of eyes, skin dermis, permis, penis and other accessory genitalia etc.

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