During a Rest Stop While Hiking, Phil Was Bitten by a Black

question 120

Multiple Choice

During a rest stop while hiking, Phil was bitten by a black widow spider. Shortly after being bitten he started having breathing difficulties and then experienced muscle spasms. The symptoms he experienced occurred because the black widow spider's venom:

• A)blocked acetylcholine receptor sites on motor neurons.
• B)blocked the release of serotonin from sending neurons.
• C)shut down the functioning of the substantia nigra in Phil's brain.
• D)caused acetylcholine to be continuously released by the motor neurons.

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Definitions:

Prolactin

A hormone produced by the anterior pituitary gland that stimulates milk production in mammals after childbirth.

Milk Production

The biological process facilitated by the mammary glands, resulting in the secretion of milk to feed offspring.

ACTH

Adrenocorticotropic hormone, a pituitary hormone that stimulates the adrenal glands to secrete cortisol and other glucocorticoids.

Stress

A physical, mental, or emotional factor causing bodily or mental tension, which can stem from any event or thought that makes you feel frustrated, angry, or nervous.