🔬 Biology · Locomotion and Movement · NEET

The muscle found in the walls of internal organs, working without conscious control, is:

Answer: Smooth muscle.

A Smooth muscle
B Skeletal muscle
C Cardiac muscle
D Striated muscle

Correct answer: A. Smooth muscle

Explanation: Smooth (visceral) muscle is non-striated and involuntary, lining organs like the gut and blood vessels.

Structure of a sarcomere showing thick myosin filaments and thin actin filaments with the Z line, M line, A band, I band and H zone labelled

A sarcomere (Z line to Z line): during contraction the I band and H zone shorten as thin filaments slide over thick, while the A band stays the same length. Image: SlothMcCarty, CC BY-SA 3.0, via Wikimedia Commons.

Concept context

Types of movement, muscle contraction, skeletal system, joints, and disorders. Important for Class 11 and NEET.

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The muscle found in the walls of internal organs, working without conscious control, is:

Concept context

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