How would high cytoplasmic calcium concentrations affect smooth muscles in caver

Question

How would high cytoplasmic calcium concentrations affect smooth muscles in cavernosal tissue? Select one: O a. It would cause them to contract. O b. It would have no effect because it is norepinephrine that causes them to contract; calcium plays no role./ c. It would cause them to relax. What happens when a person is becoming sexually aroused? Select one: a. The sympathetic nervous system stimulates a relaxation of cavernosal muscles b. The parasympathetic nervous system stimulates a contraction of cavernosal muscles c. The sympathetic nervous system stimulates a contraction of cavernosal muscles d. The parasympathetic nervous system stimulates a relaxation of cavernosal muscles

Explanation / Answer

1) The correct option is a. It would cause them to contract.

High cytoplasmic calcium concentration contracts the smooth muscles in cavernosal tissue.

2) The correct option is d. The parasympathetic nervous system stimulates a relaxation of cavernosal muscles.

Parasympathetic stimulation causes the coiled helicine arteries to uncoil and relaxes the smooth muscle in the trabeculae.

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