Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

physiology > Neurophysiology > Flashcards

Neurophysiology Flashcards

1
Q

name the brain components of the autonomic nervous system

A 
frontal and associative cortex
hypothalamus
limbic system
brain stem
medulla
cranial nerves' nuclei: III, VII, IX and X - PS functions
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

reabsorption of Acetylcholin

A

(acetylcholine esterase) -> choline only is absorbed by pre-ganglionic neuron

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

postganglionic transmission

A

in autonomic nervous system
pre-ggl neuron + collaterals(visceral afferent and enteric)
-> postggl. neuron

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

physostigmin

A

inhibits AcChesterase: first incr. transmission then decre. it by inactivating the Na⁺ channels

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

DHP receptor

A

work as voltage receptor in the muscle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

reverberation

A

decr. feedback, inhibitory signals generated by the collaterals

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

myotactic reflex

A

afferents of tendon type 1 fibers B

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

proprioceptive and exteroceptive reflexes

A

higher level of brain regulate the reflex

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

exteroceptive reflex

A

basis of behaviour to avoid pain, local response only

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

what happens to ipsilateral muscles during an exteroceptive reflex

A

the afferent activation relaxes ipsilateral extensor muscles through inhibitory interneurons

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

what happens to contralateral muscles during an exteroceptive reflex

A

alpha neurons of the extensors are excited

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

what can you see in the babinski sign

A

parsi(plantar) flexion is seen of the digits

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

characteristic of the sensory ascending pathway

A

3 neurons, including the first pseudounipolar neuron

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

rheobase

A

minimal stimulus strength that is able to generate a response, when applied for a very long time

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

when are neurons in the ventral and lateral side of the tr. spinothalamicus on the contralateral side

A

immediately after synapse, which is located on the substantia gelatinosa rolandi

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

which afferent spinal pathway carries derails of light tactile sensation

A

burdach

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

belongs to pyramidal pathway

A

tr. corticospinalis

tr. corticobulbalis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

belongs to extrapyramidal pathway

A 
rubrospinal tract
pontine reticulospinal tract
medullary reticulospinal tract
lateral vestibulospinal tract
tectospinal tract
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

spinal shock

A

guiding symptom: areflexia (absence of reflex)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

somatic restituation following spinal shock

A

hyperreflexia - overactive or overresponsive reflexes

21
Q

EEG smallest wave

A

beta

22
Q

theta wave

A

higer frequency and smaller amplitude than the delta wave

23
Q

reticular formation in the brain stem main task

A

setting the activity of higher brain areas -> synch. sleep-wake cycle

24
Q

most important regulators of sleep-wake cycle

A

nucl. of formatio reticularis and nucl. suprachiasmaticus

25
Q

sensory operations of the cortex; main unit of corticalen presentation

A

column of grey matterthat is perpendicular to the surface of the brain

26
Q

most imp afferentation to posture

A

from vestibuloapparatus

27
Q

the sequence of movement

A

movement initiation
mov planning
mov reconsideration
mov execution

28
Q

where is luthing made to achieve the decerebration ridgidity state

A

btw. nucl. ruber and nucl. deitersen

29
Q

basal ggl has a paralell function of

A

arbitrary movement (random)

30
Q

afferentation of the cerebellum

A

climbing and mossy fibers

31
Q

kinestetic learning

A

non-hereditary learned behavior

specific stimulus causes behavioral pattern, identical each time

32
Q

active PS vasodilation where|

A

salivary glands

33
Q

belong to medial limbic ring

A

area piriformis

34
Q

main efferent of the limbic system

A

the papez circuit

35
Q

short term memory where

A

frontal lobe

36
Q

visual cortex of brain where

A

occipital lobe

37
Q

tot refractive power of eye

A

62.5D

38
Q

how many optical refractory elements does the eye have

A

4

39
Q

accomodation of the eye

A

ciliary muscles contract, it relaxes the zonula fibers of zinn

40
Q

result of light

A

glutamate release of rods stop

41
Q

scotopic vision

A

only rods respond to light intensity chanves in viewable spectrum independantly of wavelength

42
Q

visual acuity

A

the smallest angle under which two neighbouring object points will still be seen as two distinguishable points

43
Q

lateral branch of optic tract

A

visual perception

44
Q

collicolus dorsalis

A

responsible for spatial localization of an objec

45
Q

perception of motion where

A

primary visual cortex

46
Q

brain area crucial in localization of sound

A

dorsal olivia

47
Q

how many optical refractive elements of the eye

A

4

48
Q

which fibers cross in optic chiasm

A

nasal retinal

physiology (19 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions