Which type of muscles do the uterus, iris of the eye, and bronchi contain?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is Option 1 i.e. Smooth muscles.
Explanation of correct option:
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The uterus, iris of the eye, and bronchi contain smooth muscles.
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These muscles are involuntary, meaning they operate without conscious control, and are found in the walls of internal organs.
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Smooth muscles contract and relax slowly and steadily, regulating functions like the contraction of the uterus, changing the size of the pupil in the eye, and controlling the diameter of the bronchi.
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They do not tire easily and can work continuously for long periods.
Explanation of other options:
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Striated muscles are mainly attached to bones and are voluntary muscles controlling movement.
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Skeletal muscles are voluntary muscles connected to the skeleton, helping in body movement.
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Cardiac muscles are found only in the heart and are responsible for continuous pumping of blood.