The Inhibition of TRH Secretion by an Increased Blood Concentration

question 82

Multiple Choice

The inhibition of TRH secretion by an increased blood concentration of thyroid hormones is an example of

• A) positive feedback
• B) negative feedback
• C) accentuation
• D) sensitization

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Definitions:

Parasympathetic Division

Part of the autonomic nervous system that conserves energy and resources during restful states by slowing heart rate and increasing digestive activities.

Autonomic Nervous System

A part of the nervous system that controls involuntary functions of the body, including heart rate, digestion, and respiratory rate.

Acetylcholine

A neurotransmitter in the brain and peripheral nervous system important for muscle contraction and signaling between nerve cells.

Norepinephrine

Norepinephrine is a neurotransmitter and hormone involved in the body's fight or flight response, regulating heart rate, blood pressure, and sugar levels.