which if the following describe a smooth muscle.
a. it can be voluntarily controlled
b. it is involuntarily controlled
c. it can be consciously controlled
d. it contract rhythmically.
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2
Answer:
b. it is involuntarily controlled
Explanation:
At a cellular level, smooth muscle functions as an involuntary non-striated muscle. Smooth muscle contains thick and thin filaments that do not arrange into sarcomeres, resulting in a non-striated pattern.
Answered by
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- B) it is involuntarily controlled.
Smooth Muscle:
- Smooth muscles also called involuntary muscles, muscles that shows no cross stripes under microscopic magnification. It consists of narrow spindle-shaped cells with a single, centrally located nucleus.
- Smooth muscle tissues , unlike striated muscle, contracts slowly and automatically. It constitutes much of the musculature of internal organs and the digestive system.
- They are found in the body's hollow organs like intestines, digestive tracts, urinary bladder, ureters, and the blood vessels of the circulating blood system.
- They are also found in walls of the lungs and the reproductive system of both genders.
- The muscles in the urinary system, performs the electrolyte balance function to eliminate the body toxins effectively.
- It also found in the blood vessels, performing vital roles in controlling the oxygenation of tissues and pressure of blood in the body.
- These muscles are found all over the body, performing several vital functions of the body and controlled by the nervous system.
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