Autonomic Nervous System Flashcards
What are the hormone-secreting cells of the adrenal medulla?
Postganglionic neurons
They are named because they form a chain along both sides of the spinal chord
Sympathetic chain ganglia
What does the collateral ganglia consist of??
Celiac, superior mesenteric, and inferior mesenteric ganglia.
Where are collateral ganglia located?
Nearer target organs
What neurons of the vagus nerve supply most of the thoracic and abdominal organs?
Preganglionic neuron
All preganglionic neurons of both the sympathetic and the parasympathetic divisions and all the postganglionic neurons of the parasympathetic division secrete?
The neurotransmitter acetylcholine
What neurons of what division secrete norepinephrine?
Most postganglionic neurons of the sympathetic division secrete norepinephrine
What is the unique feature of the enteric neurons?
They are capable of monitoring and controlling the digestive tract independently of the CNS through local reflexes