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Form & Function 1 > Lecture 38 - Parasympathetic > Flashcards

Lecture 38 - Parasympathetic Flashcards

1
Q

Where do cranial nerves CNI and CNII originate

A

cerebrum

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2
Q

where do cranial nerves CNIII - XII

A

brainstem

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3
Q

Name the cranial nerves I - XII

A
  1. olfactory
  2. optic
  3. oculomotor
  4. trochlear
  5. trigeminal
  6. abducens
  7. facial
  8. vestibular cochlear
  9. glossopharyngeal
  10. vagus
  11. accessory
  12. hypoglossal
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4
Q

what is a mnemonic to help remember the cranial nerves

A

Oh! Oh! Oh!
To Touch And Feel
Very Good Velvet
Ah Heaven

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5
Q

what is a mnemonic to help remember the function of cranial nerves

A

Some Say Marry Money But My Brother Says Big Brains Matter More

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6
Q

how are functions of cranial nerves classified

A
  1. Sensory
  2. Motor
  3. Both
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7
Q

What cranial nerves have parasympathetic fibers

A

oculomotor (3)
facial (7)
glossopharyngeal (9)
vagus (10)

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8
Q

what is the function of CN1

A

smell

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9
Q

what is the function of CN2

A

vision

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10
Q

what is the function of CN3

A

eye movement (up/down, open eyelid, pupil constriction)

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11
Q

what is the function of CN4

A

moves eye down and inwards

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12
Q

what is the function of CN5

A

sensation to the face, mastication

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13
Q

what is the function of CN6

A

moves eye laterally

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14
Q

what is the function of CN7

A

facial expression, taste (anterior 2/3), glands

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15
Q

what is the function of CN8

A

hearing, balance

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16
Q

what is the function of CN9

A

taste (posterior 1/3), swallowing, salivary glands

17
Q

what is the function of CN10

A

parasympathetic supply to eye, heart, gut, lungs, larynx

18
Q

what is the function of CN11

A

rotate the head and lift shoulders

19
Q

what is the function of CN12

A

supply tongue muscles

20
Q

T/F: both pre and post-ganglionic parasympathetic fibers use acetylcholine as a neurotransmitter

A

TRUE

21
Q

what is the role of the parasympathetic system

A

maintenance functions

  • “rest and digest”
  • D division
22
Q

what functions are encompassed by the D division

A

digestion, diuresis, defecation

23
Q

what does “SLUDD” mean

A

S - salivation
L - lacrimation
U - urination
D - digestion
D - defecation

24
Q

why are SLUDD actions typically seen in toxic cases

A

due to an overproduction of acetylcholine

25
Q

what are the cholinergic receptors and their subdivisions

A

nicotinic: ionotropic
muscarinic: G-coupled, M1-M5

26
Q

What is the location and effect of:

M1

A

location: CNS + stomach

effect: Gq, depolarization, H+ secretion

27
Q

What is the location and effect of:

M2

A

location: heart, lungs

effect: Gi, bradycardia, AV block, bronchoconstriction

28
Q

What is the location and effect of:

M4

A

location: CNS, heart

effect: Gi signaling

29
Q

What is the location and effect of:

M3

A

location: smooth muscle, salivary gland, + CNS

effect: Gq, bronchoconstriction, salivation, vasodilation

30
Q

What is the location and effect of:

M5

A

location: CNS

effect: Gq signaling

31
Q

parasympathomimetic

A

mimics parasympathetic system

32
Q

parasympatholytic

A

opposes parasympathetic action

33
Q

direct effect

A

agonist or antagonist of the receptor

34
Q

indirect effect

A

nonreceptor related

35
Q

summarize the parasympathetic effects on the eye

A
  • constrict pupils
  • lens bulge
  • lacrimation
36
Q

summarize the parasympathetic effects on the heart

A
  • bradycardia, negative chronotropic
  • negative inotropy (contraction)
  • negative dromotropy (decreased AV node conduction)
37
Q

T/F: The parasympathetic system increases GI function

A

TRUE - increased secretion (insulin, bile, etc.), motility

38
Q

summarize the effect of the parasympathetic system on the UGT

A
  • bladder contraction
  • releasing urethral sphincter
  • promote voiding
39
Q

summarize the effect of the parasympathetic system on the reproductive systems

A

vasodilation
increased vaginal lubrication

Form & Function 1 (55 decks)

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