the ____ axis is one route by which the brain and body produce arousal and fear.\nparasympathetic\nacth\nans\…

the ____ axis is one route by which the brain and body produce arousal and fear.\nparasympathetic\nacth\nans\nhpa

the ____ axis is one route by which the brain and body produce arousal and fear.\nparasympathetic\nacth\nans\nhpa

Answer

Brief Explanations:

The hypothalamic - pituitary - adrenal (HPA) axis is involved in the body's stress response, producing arousal and fear. The parasympathetic system is for rest - and - digest, ACTH is a hormone released by the pituitary in the HPA axis but not an axis itself, and ANS (autonomic nervous system) is a broader system that includes the sympathetic and parasympathetic, not the specific axis for arousal and fear in this context.

Answer:

D. HPA