Smooth Muscle

question 16

Multiple Choice

Smooth muscle

• A) is under voluntary control.
• B) contracts when stretched.
• C) produces rapid contractions.
• D) does not contain actin or myosin.

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Definitions:

Hypothalamus

A region of the brain that regulates many bodily functions, including temperature control, hunger, thirst, emotional behavior, and the circadian rhythm.

Second Messenger

Intracellular signaling molecules released by the cell in response to exposure to extracellular signaling molecules.

Thyroxine

A hormone produced by the thyroid gland that regulates metabolism, energy generation, and growth and development.

FSH and LH

Follicle-Stimulating Hormone (FSH) and Luteinizing Hormone (LH) are gonadotropins secreted by the pituitary gland, involved in the regulation of reproductive processes including the menstrual cycle and spermatogenesis.