ANS Oro Facial Aspects Flashcards

1
Q

what does ANS do

A

control body systems except skeletal muscle

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2
Q

what does the ANS regulate

A

involuntary function

  • smooth muscle
  • cardiac
  • gland sec
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3
Q

what awesome untrained aspects of ANS

A

urination

defaction

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4
Q

what does parasymp do

A

coordinates the bodys haemostatic functions

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5
Q

what does symp do

A

coord body response to stress

assc with fight r flight

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6
Q

what are simp and paarsymp not

A

not reciprocal

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7
Q

what does parasymp do

A

increased sec
vasodilation
increase watery saliva

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8
Q

what does simp do

A

alpha 1 and beta 2 adregenic receps
increased sec
organic components increased
vasoconstriciton

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9
Q

what is the axon like for parasymp

A

long pre - ACh

short post - ACh

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10
Q

what are the asscnerve with parsym

A

facial - summand and sibling glands

glossoPh - parotid and lingua

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11
Q

what are the gang affected by parasymp

A

remaks
otic
submandibular
pterygopalatine

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12
Q

what is receptor for parasymp

A

muscarinic

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13
Q

what si the result of parasymp

A

increase watery vol of saliva
smallinc organic comps
contract myopia cell sin acini

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14
Q

what is the antagonist of parasymp

A

atropine

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15
Q

what issymp axon like

A

short pre - ACh

long post - NA (ACh at sweat glands)

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16
Q

when does FReys syndomr occur

A

after parotid surgery

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17
Q

what is greys syndorme

A

damage to auriulotemoral nerve
paarsymp to salivary gland
simp to facial sweat gland

18
Q

what causes freys

A

regeneration of damged nerves mixed and misdirected

salivary nerve inv to sweat glands

19
Q

what is the result of freys

A

activation of sweat glands to gustatory stimulus

20
Q

what are the neural controls of pro facial blood vessels

A

autonomic - simp vasoaons/dilator

afferent - axon reflex - triple response

21
Q

what is triple response

A
blunt trauma effects 
3 steps 
- red reaction or flush
- flare
- wheal
22
Q

what siit eh red reaction or flush

A

cap dilation
histamine release from damaged tissue
LA no effect

23
Q

what is flare

A

arteriolar dilation
increased blood flow
LA abolish flare

24
Q

what is wheal

A

increase cap perm

histamina releade

25
what parts of triple response mediated by axon reflex
flare and wheal
26
what are the hormonal controls of pro facial vessels
systemic - adrenaline | local inflam - bradykinin
27
what are the metabolic controls of pro facial vessels
metabolites carbon dioxide vasodiltion
28
what is the normal flow to pulp
40-50ml/min/100g tissue
29
what is the control of pulpal blood vessels
efefrent - symp vasocon or vaso di | afferent - pain, inc blood flow, inc cap perm inc sensitivity
30
what are the local factors affecting pulpal blood vessels
bradykinin
31
what is the description of pulpal blood vessels
constat volume problem
32
what is the constant volume problem
``` local vasodi inc vol in area inc pressure close vessels ischaemia death pulp ```
33
what is ischaemia
reduced blood flow | reduced nutrient s and metabolites
34
what is pulp death due to
stasis of blood in vessels
35
what is the acton of alpha 1 adrenoreceptor
smooth muscle contraction | vasoonstrition
36
what si the agonist and antagonist
agonist - adrenaline | antag - phentolamine
37
what is the action of beta 1 adrenoreceptors
heart muscle contraction
38
what is agonist and antag of beta 1
agonist - adrenaline | antag - propranolol, atenolol
39
what is the action of beta 2 adrenoreceptoos
smooth muscle relax
40
what is the agonist and antag of beta 2
agonist - adrenaline and salbutamol | antag - propanolol
41
what are some beta blockers
propanolol and atenolol