A. This type of muscle is found in the lining of the stomach as well as the walls of arteries. cardiac muscle skeletal muscle smooth muscle B. A muscle type that functions to transport substances through hollow viscera (organs). skeletal muscle cardiac muscle smooth muscle C. Voluntary, striated and multinucleated muscle. skeletal muscle cardiac muscle
A. This type of muscle is found in the lining of the stomach as well as the walls of arteries.
cardiac muscle
skeletal muscle
smooth muscle
B. A muscle type that functions to transport substances through hollow viscera (organs).
skeletal muscle
cardiac muscle
smooth muscle
C. Voluntary, striated and multinucleated muscle.
skeletal muscle
cardiac muscle
smooth muscle
The Correct Answer and Explanation is :
A. Smooth muscle
Smooth muscle is the type of muscle found in the lining of the stomach and the walls of arteries. It is an involuntary, non-striated muscle that contracts without conscious control. This type of muscle facilitates the movement of food through the digestive system and regulates blood flow by contracting and relaxing the arteries. Smooth muscle is also found in various other organs such as the bladder, intestines, and blood vessels.
B. Smooth muscle
Smooth muscle plays a critical role in transporting substances through hollow organs, or viscera. These muscles contract rhythmically to move materials such as food, waste, or blood through the digestive system, urinary system, and circulatory system. For example, in the stomach and intestines, smooth muscle contractions (peristalsis) propel food through the digestive tract. Similarly, smooth muscle in blood vessel walls helps regulate blood flow by contracting and relaxing to control vessel diameter.
C. Skeletal muscle
Skeletal muscle is the only voluntary muscle type among the three listed. It is striated (appears striped under a microscope) and multinucleated (having more than one nucleus per cell). Skeletal muscle fibers are under conscious control, meaning they are responsible for voluntary movements such as walking, running, and lifting. These muscles attach to bones via tendons, and their contraction is responsible for the movement of the body as a whole.
Explanation:
- Smooth muscle is non-striated and functions involuntarily. It is responsible for the movement of materials within various organs such as the stomach and arteries. Its role in organ systems is crucial for processes like digestion, circulation, and urination.
- Skeletal muscle, which is striated and voluntary, enables movement through conscious control and has multiple nuclei per fiber. It allows for movement of bones, posture maintenance, and other voluntary actions.
- Cardiac muscle, while also striated like skeletal muscle, is found only in the heart. It functions involuntarily to pump blood throughout the body, but it is not a match for the specific functions described in the questions above.