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Biol 205 > Ch. 17 > Flashcards

Ch. 17 Flashcards

(48 cards)

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1
Q

two divisions of the ANS

A

sympathetic and parasympathetic

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2
Q

ANS is the system of

A

motor neurons that innervates smooth, cardiac, and glands

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3
Q

SNS vs ANS effectors

A

SNS: skeletal muscle
ANS: smooth, cardiac, and glands

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4
Q

ANS/SNS neurotransmitter effects

A

SNS: excitatory only
ANS: excitatory or inhibitory

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5
Q

SNS/ANS efferent pathways/ganglia

A

SNS: single neuron (lower motor neuron)
ANS: 2 neurons pre/post

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6
Q

preganglionic neuron cell body found

A

lateral horn

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7
Q

preganglionic neuron myelination

A

lightly

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8
Q

preganglionic neuron termination

A

autonomic ganglion

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9
Q

postganglionic neuron cell body is in

A

autonomic ganglion

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10
Q

post ganglion neuron myelination

A

unmyelinated

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11
Q

post ganglionic neuron termination

A

at effector

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12
Q

sympathetic E division means

A

flight or fight

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13
Q

sympathetic division symptoms

A

increase hr, deep breathing, dry mouth, cold sweaty skin, dilated pupils, release of glucose

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14
Q

resting and digesting divison

A

parasympathetic

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15
Q

parasympathetic division D

A

digestion, defecate, diuresis

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16
Q

Parasympathetic and sympathetic division innervate

A

same tissues, but different functions

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17
Q

sympathetic also referred to as

A

thoracolumbar divivison of ANS

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18
Q

parasympathetic aka

A

cranosacral division

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19
Q

Sympathetic innervates tissue

A

visceral organs, heart, lungs, pancreas, reproductive,

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20
Q

Sympathetic innervates vessels of

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A

smooth muscle blood vessels

21
Q

sympathetic preganglionic fibers length

22
Q

sympathetic postganglionic fibers

23
Q

since sympathetic preganglionic are short they are

Study These Flashcards
A

closer to CNS

24
Q

1 sympathetic preganglionic can synapse with

Study These Flashcards
A

32 ganglionic neurons

25
sympathetic chain ganglia are found
lateral vertebral column
26
route of sympathetic preganglionic fibers
exit cord through ventral root into spinal nerve pass into white ramus communicans enter sympathetic chain ganglion
27
1 option for preganglionic fibers in sympathetic chain
synapse with post ganglionic neuron in same chain ganglion
28
2 option for preganglionic fibers in sympathetic chain
ascend/descend sympathetic chain to synapse in diff chain ganglion
29
3 option for preganglionic fibers in sympathetic chain
pass through chain ganglion to synapse in collateral ganglion
30
postganglionic fibers for sympathetic chain ganglia enter
dorsal or ventral ramus of spinal nerves via gray ramus communicans
31
sympathetic postganglionic fibers exit
via sympathetic nerves
32
ANS collateral ganglia are located
anterior to the vertebral column
33
collateral ganglia are destination for fibers
inferior to T4
34
splanchnic nerves
nerve running sympathetic chain going out to collateral ganglia
35
preganglionic fibers pass through sympathetic chain and
celiac ganglion to synapse with chromaffin cells
36
preganglionic fibers pass through sympathetic chain and celial ganglion to synapses directly with chromaffin cells in the
adrenal medulla
37
chromaffin cells are modified
post ganglionic neurons
38
chromaffin cells release
epinephrine and norepinephrine
39
Parasympathetic division arrises from
cranial nerves III VII IX X
40
parasympathetic 90% preganglionic fibers
vagus nerve
41
parasympathetic division preganglionic fibers synapse with
post ganglionic neurons in terminal or intramural ganglia
42
parasympathetic division preganglionic fibers
long
43
parasympatetic division post ganglionic fibers
short
44
parasympathetic division less divergence means
more specific response
45
parasympathetic division ganglia are
closer to their target (terminal)
46
organs parasympathetic division organs innervate
eye, salivary, glands, sweat glands
47
parasympathetic division does not innervate
blood vessels
48
most organs of the body are innervated by
both divisons of ANS

Biol 205 (45 decks)

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