Autonomic Nervous System

Question 1

2 branches

Answer 1

sympathetic and parasympathetic branch

Question 2

pre-ganglionic neuron

Answer 2

cell body in brain/spinal cord, extends to ganglion

Question 3

post-ganglion neuron

Answer 3

originates from ganglion to target organ/gland

Question 4

sympathetic nervous system

Answer 4

fight, flight freeze, increase heart rate, blood flow, etc. Decrease GI motility and secretions and blood flow

Question 5

sympathetic nervous system - pre-ganglionic neurons

Answer 5

emerge from the thoracic/lumbar vertebral sections (thoracolumbar)

Question 6

ganglion chain - sympathetic nervous system

Answer 6

pre and post synapse location outside of the spinal cord

Question 7

sympathetic nervous system - Ach

Answer 7

released from pre-ganglionic neuron, binds to nicotinic receptors on post ganglionic neurons, generating action potential in post ganglionic neurons

Question 8

sympathetic nervous system - NE

Answer 8

usually post-ganglionic neuron releases NE, binds to alpha or beta adrenergic receptors on target tissue to initiate response

Question 9

parasympathetic nervous system

Answer 9

does opposite of sympathetic nervous system, symptoms wise. rest and digest

Question 10

parasympathetic nervous system - pre-ganglion

Answer 10

emerge from brain and sacral vertebral region (cranial-sacral), travels directly to target organ (no ganglion chain), synapses (innervates) with post ganglionic neuron at target organ. relatively long compared to post ganglion length

Question 11

parasympathetic nervous system - Ach

Answer 11

pre-ganglions release, bind to nicotinic receptors, released from post-ganglions as well. Binds to muscarinic receptors in target tissues