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MED 1022 > Neurophysiology > Flashcards

Neurophysiology Flashcards

1
Q

sympathetic nervous system:

length of pre n post ganglionic fibers

A

long pre

short post

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2
Q

parasympathetic nervous system:

length of pre n post ganglionic fibers

A

short pre

long post

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3
Q

neurotransmitters of sympathetic nerouce system

A

preganglionic release Ach

Post release NA

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4
Q

neurotransmitters of parasympathetic nerouce system

A

pre release Ach

Post release Ach

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5
Q

where preganglionic cell bodies lie: sympa

A

lateral grey horn of spinal cord

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6
Q

where preganglionic cell bodies lie: para

A

brain stem

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7
Q

nicotinic

A

is ionotropic type

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8
Q

muscarinic

A

is metabotropic (M&M)

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9
Q

adrenergic

A

is metabotropic

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10
Q

ADRENAL MEDULLA

A

➢ Wen stimulated by sympathetic preganglionic neurons, it an produce noradrenaline and adrenaline

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11
Q

lamina I, II, V

A

nociception

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12
Q

➢ exteroception

A

sensitivity to stimuli originating outside of the body

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13
Q

➢ proprioception

A

sense stimuli arising within the body regarding position, motion, and equilibrium.

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14
Q

➢ nociception

A

transmission of pain (not the feeling of pain)

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15
Q

➢ mechanoreceptors-

A

respond to stretch or deformation

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16
Q

sensory system

A 
accessory structure
TRANSLATE
receptors
TRANSUDCE
afferent nerve fibres
TRANSMIT
cns
17
Q

A alpha fibre

A

proprioceptors of skeletal muscle

18
Q

A beta fibre

A

mechanoreceptors of skin

19
Q

A delta fibre

A

pain temp

20
Q

C fibre

A

pain, temp, itch

21
Q

o A –delta for pain

A

mecahnorecptors and thermoreceptors

22
Q

o C delta for pain

A

polymodal

23
Q

modulation of pain

A

o Amygdala + hypothalamus -> periaqueductal grey (PAG) -> RVM in lower brainstem -> spinal cord -> pain modulated

24
Q

discriminative sensation pathway

A

posteior column-medial lemnicus

25
Q

non discriminative sensation pathway

A

spinothalamic tract

26
Q

discriminative sensation

for wat?

A 
fine touch (cutaneous mechano-receptors)
proprioception
27
Q

non discriminative sensation

for wat?

A

crude touch
thermoception
nocicpetion

28
Q

➢ meissner’s corpuscles

A

vibration (superficial)

hair follicles

29
Q

➢ merkel’s discs

A

pressure and texture

30
Q

➢ pacinian corpuscles

A

vibration (deep

31
Q

➢ ruffini’s corpuscles

A

stretch

32
Q

small RF (receptive field)

A

fine tactile acuity

33
Q

larger RF (receptive field)

A

less tactile acuity

34
Q

muscle spindles

A

detect stretch/length of muscle

35
Q

golgi organs

A

detect muscle tension

36
Q

penile erection

A

parasympathetic

37
Q

Fine’touch’is’controlled’by:’

A

a. Mechanically’gated’and’activated’by’stretch’

MED 1022 (16 decks)

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