Question

Which of the following is an example of an organ that contains a smooth muscle?

• A. Iris of eye
• B. Uterus
• C. Bronchi
• D. All of the above

Answer 1

The correct option is D All of the above

• The dilator muscle of iris is a smooth muscle of the eye.
• The middle layer of the uterus is formed of smooth muscles.
• The bronchi and bronchioles also have a layer of smooth muscles which help them to contract and dilate.

Hence, the correct answer is option is 'D'.