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EXCI 254 > ANS > Flashcards

ANS Flashcards

1
Q

ANS consist of

A

autonomic sensory neurnon, integrative center, autonomic motor neurons, enteric division

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2
Q

location of autonomic sensoru neuron

A

visceral organs and blood vessel

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3
Q

location of integrating center

A

CNS

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4
Q

location autonomic motor neurons

A

propagate from cns to various effector tissues

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5
Q

ANS innervate involuntary or voluntary muscle

A

involuntary

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6
Q

the visceral afferent and visceral efferent don’t travail together

A

false

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7
Q

afferent component is sensory or motor

A

sensory

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8
Q

efferent component is sensory or motor

A

motor

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9
Q

function of afferent component

A

autonomie réflexe (blood vessel , change in homeostie) + pain fibers

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10
Q

function of efferent component

A

regulation of visceral function

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11
Q

in which component there is 2 motor neurons in series

A

efferent

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12
Q

what does preganglionic fibers of parasympathetic division secrete

A

Ach

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13
Q

exemple of ANS

A

celiac plexus, superior mesenteric plexus, inferior mesenteric plexus

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14
Q

ANS is organized into

A

nerve ganglia plexus

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15
Q

innervation of ANS

A

involuntarilyinnervates cardiac & smooth muscle, glands of the body

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16
Q

where does ganglia in ANS lie

A

outside of spinal cord

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17
Q

function of cardiac muscle in ANS

A

increase or decrease rate/force of contraction

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18
Q

function of gland in ANS

A

increase or decrease secretion

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19
Q

ANS divided into 2 systems

A

sympathetic (thoracolumbar) + parasymptathetic (craniosacral)

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20
Q

explain the concept of visceral efferent pathway

A

They pass through the PREGANGLIONIC NEURON to synapse in the AUTONOMIC ganglion

• They then pass through to the POSTGANGLIONIC NEURON to the EFFECTOR (smooth or cardiac ms/ Glands)

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21
Q

location of neurone in the visceral efferent pathway

A

lateral grey bodies with some in the anterior horn

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22
Q

where does the synapse occurs

A

autonomic ganglia

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23
Q

when does the preganglionic neurons changed name

A

until they synapse with another visceral efferent neurone

24
Q

what are the 3 location of ganglia

A

sympathetic trunk
prevertebral ganglion
terminal ganglion

25
location of sympathetic trunk
above diaphragm on each side of vertebral column
26
which structure btw the 3 location of ganglia has impacted on structure below diaphragm
prevertebral ganglion
27
which 2 ganglia is in the sympathetic division
sympathetic trunk and prevertebral ganglion
28
location of prevertebral ganglia
T1-L2 , anterior of large abdominal arteries
29
location of terminal gangilia
within or very close to effector that they are about to innervate
30
where did the prevertebral ganglion take their name + exemple
from the large abdominal a. - > celiac ganglion (celiac artery) - > sup/inf mesenteric ganglion ( sup/inf mesenteric artery)
31
tje sympathetic trunk and prevertebral ganglia receive their preganglionic fiber from ?
thoracolumbar sympathetic division
32
terminal ganglion receive preganglionic fibers directly from
craniosacral parasympathetic division
33
all ganglia of terminal ganglion receive what
preganglionic neurons/fibers
34
location of preganglionic fiber to their cell bodies
lateral grey horn of spinal cord
35
pathway of autonomic efferent fibers
The Autonomic Efferent Fibers leave by the ventral root of the spinal nerve accompanying the Somatic Efferent Fibers
36
what are the spinal segment involved in the sympathetic division and the name
TI-T2,L1,L2 | thoracolumbar division
37
what does the sympathetic trunk division influence
organ above diaphragm
38
what does the prevertebral ganglion (celiac ganglion) influence
structure below diaphragm
39
where does the preganglionic fiber sympathetic trunk enter
white rami communicant from ventral rams of spinal cord
40
where does the postganglionic fibers of sympathetic trunk enter the ventral rami of spinal nerve
grey rami communicant
41
what are the name of the presynaptic nerve in the prevertebral ganglia + location
splanchnic nerve | below diaphragm
42
presynaptic neurone may synapse with only one postsynaptic neuron in the sympathetic division
false with as many as 20 postsynaptic neurons
43
which division have a wide spread effect on the body
sympathetic response
44
other name of the celiac plexus
solar plexus
45
what is comprised in the celiac plexus
paired celiac ganglia, sup mesenteric ganglia, smaller ganglia
46
location of celiac plexus
anterior aorta at the origin of celiac artery
47
location of preganglionic cell Bodie go parasympathetic division
lateral grey horn and nuclei of cranial nerve III,VII,IX,X
48
from where are the pregranglionic fibers of parasympathetic division
cranial nerve 3,4,9,10 and corresponding ventral root of spinal nerve S2-S4
49
name of the terminal intramural ganglion division
craniosacral division
50
what is release by the postganglionic fibers in sympathetic division and name of fibers
norepinephrine | adrenergic fibers
51
function of sympathetic division
- increase activity of organ - prepare individual for emergency situation - increase heart rate, aggression, adreanile production - increase blood flow to skeletal and cardiac muscle (vasodilation) - vasoconstriction of non essential organ
52
name of fibers of sympathetic division
adrenergic fibers
53
what is the exception in the sympathetic division
sweat glands release ach
54
what does postganglionic fibers relates in parasympathetic division
acethylcoline
55
function of parasympathetic division
- decreacse activity - maintain organ level of activity to pressure - homeostasis - dominant in non-stressful situation
56
is the sympathetic and parasympathetic division always working together
yes because they cause opposite response

EXCI 254 (10 decks)

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