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30 notecards = 8 pages (4 cards per page)

Viewing:

autonomic nervous system

front 1

daw a flowchart of the organization of the nervous system

back 1

front 2

Effector of somatic ns

Effector of autonomic ns

back 2

SNS: skeletal muscles

ANS: smooth muscle, cardiac muscle, and glands

front 3

Efferent pathway of SNS

Efferent pathway of ANS

back 3

one neuron system

two neuron system (pre- and post- synaptic)

front 4

neurotransmitter and response of target organ of somatic nervous system

back 4

acetylcholine - excitatory

front 5

neurotransmitter and response of target organ of autonomic nervous system

back 5

presynaptic neuron - acetylcholine - excitatory;

postsynaptic neuron - sympathetic - norepinephrine and epinephrine

postsynaptic neuron - parasympathetic - acetylcholine

front 6

where are motor neuron cell bodies located? sensory neuron cell bodies?

back 6

ventral horn of spinal cord; dorsal root ganglia

front 7

parasympathetic cranial nerves?

back 7

3,7,9,10

front 8

spinal cord levels of sympathetic nervous system?

back 8

T1-L2

front 9

spinal cord levels of parasympathetic nervous system?

back 9

S2-s4

front 10

origin of presynpatic neuron cell body in SNS

origin of presynaptic neuron cell body in PNS

(think not super specific)

back 10

thoracolumbar region of the spinal cord (called thoracolumbar region)

brain and sacral spinal cord (called craniosacral division)

front 11

pre and post synaptic fiber lengths of SNS and PNS

back 11

SNS - presynaptic is short and postsynaptic is long

PNS presynaptic is long and postsynaptic is short

front 12

Why is the presynaptic fiber length short and postsynaptic long in the SNS?

back 12

b/c presynpatic goes to the sympathetic chain of white rami communicnte - ganglia is close to spinal cord. and then postsynaptic has to travel all the way to effector organ

front 13

Why is the presynaptic fiber length long and postsynaptic fiber short in the PNS?

back 13

ganglia is located in the effector organ

front 14

what is the only major body function not inhibited by PNS?

back 14

digestion

front 15

what are the three options when presynaptic fiber joins sympathetic chain via white rami?

back 15

synapse at same level of chain entrance

ascend or descend to different level

pass through chain without synapsing - splanchnic nerve

front 16

which are the only splanchnic nerves that carry parasympthetic fibers?

back 16

pelvic splanchnic nerves

front 17

presynaptic fibers enter sympathetic chain via _______ and exit via ____

back 17

white rami; grey rami

front 18

Where are presynaptic neuron cell bodies located in parasympathetic nervous system?

back 18

nuclei for cranial nerves III, VII, IX, X

and S2-S4 spinal cord levels

front 19

where is the synapse located between neurons in parasympathetic nervous system?

back 19

terminal ganglia

-named ganglia like ciliary, pterygopalatine, submandibular, and otic

-unnamed intramural gnaglia (in or near the wall of effector organ)

front 20

Presynaptic fibers running via the oculomotor nerve (III) innervates what?

facial nerve?

glossopharangyeal?

vagus?

back 20

smooth muscle in eye

lacrimal, submandibular and sublingual glands

parotid gland

almost every organ in the thoracic and abdominal cavity

front 21

which organs receive parasympathetic communication via the vagus nerve?

back 21

heart, lungs, liver, gallbladder, stomach, small intestine, pancreas, and proximal half of large intestine

front 22

what is the pathway of cranial outflow of PNS?

sacral outflow?

back 22

presynaptic fibers run via the four parasympathetic cranial nerves

presynaptic fibers run through the ventral root --> spinal nerve --> ventral rami --> exit ventral rami as pelvic splanchnic nerves

front 23

what innervates distal portion of large intestine? proximal?

back 23

pelvic splanchnic nerves; vagus nerve

front 24

where do pelvic splanchnic nerves synapse and what do they innervate?

back 24

synapse in intramural ganglia and innervate distal half of large intestine and pelvic viscera (urinary bladder, uterus, and reproductive organs)

front 25

where are presynaptic neuron cell bodies located in the SNS?

back 25

thoracolumbar region of spinal cord (T1-L2) and the intermediate horn

front 26

where is the synapse between the two neurons in the SNS?

back 26

paravertebral ganglia on the sympathetic chain

or

prevertebral/collateral ganglia on the abdominal aorta

front 27

the sympathetic chain extends from _____ to _____

back 27

cranial base; coccyx

front 28

how are the paravertebral ganglia joined to the spinal nerve?

back 28

by white and grey rami communicantes

front 29

what is the pattern of thoracolumbar outflow in the SNS?

back 29

presynaptic fibers exit through ventral root --> spinal nerve--> white ramus--> paravertebral ganglia on the sympathetic chain

front 30

if preganglionic fibers do not synapse on the sympathetic chain in SNS, how do they exit the chain?

back 30

as splanchnic nerves