The Release of Thyrotropin-Releasing Hormone from the Hypothalamus Stimulates Thyrotropin

question 12

Multiple Choice

The release of thyrotropin-releasing hormone from the hypothalamus stimulates thyrotropin release from the pituitary,which further leads to synthesis and secretion of thyroid hormone from the thyroid gland.When the concentration of thyroid hormone in the blood turns off the release of thyrotropin from the pituitary,this is referred to as what type of feedback?

• A) Open loop feedback
• B) Negative feedback
• C) Positive feedback
• D) Inhibitory feedback

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Definitions:

Melanoma

A type of skin cancer that originates in the pigment-producing melanocytes, known for its potential to spread to other parts of the body and be deadly.

Papule

A small, raised, solid pimple or swelling on the skin that is often part of an acne outbreak or skin condition.

Vesicle

A small fluid-filled blister on the skin or within the body, often serving as a means of transport for lipids, proteins, and other molecules in the cell.

Petechiae

Small, pinpoint, red spots on the skin caused by minor bleeding from broken capillary blood vessels.