High School

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Which pathway is illustrated?

A. Spinal nerve pathway
B. Postganglionic sympathetic nerve pathway
C. Adrenal medulla pathway
D. Splanchnic nerve pathway
E. Raynaud nerve pathway

Answer :

The adrenal medulla pathway involves the release of adrenaline and noradrenaline in response to signals from the sympathetic nervous system, preparing the body to respond to stressors by increasing heart rate, dilating airways, and mobilizing energy stores. So the correct answer is option c) Adrenal medulla pathway.

This pathway involves the adrenal medulla, which is the inner part of the adrenal glands located atop the kidneys. When the sympathetic nervous system is activated, signals are sent from the spinal cord to the adrenal medulla. Upon receiving these signals, the adrenal medulla releases hormones such as adrenaline (epinephrine) and noradrenaline (norepinephrine) into the bloodstream.

These hormones play a crucial role in the body's "fight or flight" response, preparing it to cope with stress or danger. They increase heart rate, dilate air passages, and mobilize glucose and fat stores for energy, among other effects. This pathway is a key component of the sympathetic nervous system's response to stressors.

So the correct answer is option c) Adrenal medulla pathway.

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