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Multiple Choice
Which of the following organs lacks smooth muscle?
A
Heart
B
Stomach
C
Bladder
D
Intestines
Verified step by step guidance
1
Understand the role of smooth muscle: Smooth muscle is a type of involuntary muscle found in various organs, responsible for movements such as contraction and relaxation without conscious control.
Identify the organs listed: The problem provides a list of organs - Heart, Stomach, Bladder, and Intestines.
Recall the anatomy of each organ: The stomach, bladder, and intestines are known to contain smooth muscle, which helps in processes like digestion, urine storage, and peristalsis.
Consider the heart's muscle type: The heart is primarily composed of cardiac muscle, which is distinct from smooth muscle. Cardiac muscle is specialized for continuous rhythmic contractions.
Conclude which organ lacks smooth muscle: Based on the anatomical composition, the heart lacks smooth muscle, as it is made up of cardiac muscle instead.