ANATOMY

Detailed explanation-1: -Involuntary muscles are present in the walls of the digestive system, blood vessels, bronchi, uterus and bladder. Although they are formed by special striated muscle fibers that are not smooth, they still belong to the smooth muscle group, as well as the heart muscle group.

Detailed explanation-2: -Muscles that contract or move without conscious control are known as involuntary muscles. The viscera, or internal organs, are usually connected with these muscles, which have regular, sluggish contractions and involuntary motions. They are uninucleated and unstriated muscles. Q.

Detailed explanation-3: -Smooth muscle and Cardiac muscles are involuntary muscles which are found in those organs where involuntary movement is possible, like alimentary canal and heart respectively.

Detailed explanation-4: -The correct option is A True Cardiac muscles are involuntary muscles.