NaimExplain

How does the mechanism at adrenal medulla explain why stress response in systematic? Answer: Release of NT epinephrine and norepinephrine into blood, so circulates through whole body. feel it from head to toes.

What happens at the Adrenal medulla with sympathetic ganglion? Answer: preganglionic sympathetic neuron innervates the modified postganglionic neurons (chromaffin cells) of the sympathetic nervous system via Ach which causes a release of epinephrine into the blood to target tissues.

What is the exception for some preganglionic sympathetic neurons? Answer: Some synapse at the adrenal gland which then in response secretes epinephrine and norepinephrine into the blood.

Which nerves originate from the thoracic lumbar region of spinal cord, and where do they travel to?  Answer: (T1-L2). Short preganglionic sympathetic fibers exit spinal cord and synapse on postganglionic neurons near spinal cord which then travel to guts, liver, heart, bladder, reproductive organs, etc.