Brainscape's Knowledge GenomeTM

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


See full index

Anatomy > Test 1 neuro > Flashcards

Test 1 neuro Flashcards

0
Q

Collection of nerve cell bodies outside of cns?

A

Ganglion

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

Cns- nucleus is ____ matter?

Tract is _____ matter?

A

Nuc is gray matter- collection of neuron cell bodies

Tract is white matter- collection of nerve fibers / connects nuclei

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

Cervical spinal cord

A

Large amount of white matter….small amount of grey matter… Large and oval

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

Thoracic spinal cord

A

Oval shaped… Sm thn cervical… Have lateral horns( part of autonomic ns)…

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

Lumbar spinal cord

A

Largest amount of grey area since supplying efferently more muscles

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

Anterior/posterior radicular arteries supply _____

A

Nerve roots

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

Corticospinal tract origin

A

All motor areas…

Per motor , supplementary, primary motor cortices

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

Corticospinal tract function

A

Fractionation of movement esp hand( lateral)

Control of neck shoulder nd trunk muscles( med)

Lateral Pathways control the activation of movement

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

Where does corticospinal tract decussates?

A

Level of medulla

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

Rubrospinal tract origin

A

Red nucleus of midbrain

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

Rubrospinal tract projects to…

A

LMMs innervating upper limb flexors

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

Rubrospinal tract decussates

A

In midbrain…

Descends through pons medulla and lateral spinal cord

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

Corticobulbar tract origin

A

Arises in motor areas of cerebral cortex

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

Corticobulbar tract projects to …

A

Cranial nuclei in brainstem

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

Corticobulbar tract function

A

Facilitate LMNs innervating muscles of face, tongue, pharynx and larynx, traps and scm

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

Lateral reticulospinal tract origin

A

Lateral reticular formation of brainstem

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

Lateral reticulospinal tracts desends _______.

A

Bilaterally

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

Lateral reticulospinal tracts receive input from?…

A

Cerebral cortex

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

Lateral reticulospinal tract function.?…

A

Typically facilitates flexor muscles, while inhibiting extensor motor neurons( reversed for ambulation)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Medial reticulospinal tract originates?.

A

Pontine reticular formation

20
Q

Medial reticulospinal tract function?

A

Facilitates ipsilateral LMNs innervating postural muscles and limb extensors

Wind Up and Throwing requires the reticulospinal tracts to be involved to coordinate activation deactivation of antigravity reflexes

21
Q

Vestibulospinal tract function

A

Responds to stimuli from the vestibular apparatus

22
Q

Lateral vs tract

A

Facilitates extensors and inhibits flexors

23
Q

Medial vs tract

A

Controls neck and upper back muscles

24
Q

Tectospinal tract origin

A

Midbrain —- superior colliculus — which receives direct input from the retina and projections from visual cortex

25
Q

Tectospinal tract function

A

Directs head movements toward novel visual and auditory stimuli

Brain stem neurons send signals to keep the pitchers eyes in the target, while the head and body are in motion (vs and tectospinal tracts)

26
Q

Tectospinal tract course

A

Superior colliculus occipital lobe

Crosses at tectobulbospinal junction

Travels with vestibulospinal tract ending cervical region

27
Q

Pyramidal cells … Two types

A

Betz in cns
Dendritic spines

Projects axons outside of it

28
Q

Stellate nonpyramidal

A

Mostly receives info from other cortical structures

29
Q

Aca supply

A

Medial surface frontal and parietal lobes

30
Q

Mca supply

A 
Internal capsul
Globus pallidus
Putamen 
Caudate
Lat ham
31
Q

Pca supply

A

Midbrain , occipital lobe, portions of medial and inferior temporal lobes

32
Q

•Go

A

–Motor cortex (area M1) sends executing signal to LMNs to perform the movement.

33
Q

•Set

A

–Supplementary and Premotor areas – movement strategies devised and held until executed

34
Q

Ready

A

–Depends on activation of parietal and frontal lobes (attention and alertness

35
Q

•Runner on first steals second – pitchers head turns toward new stimulus (what tract?….)

A

(Tectospinal Tract

36
Q

What cells are the only cells that carry output info for the cerebellar cortex

A

Perkinje

37
Q

GABA neurotransmitter is ______?

A

Inhibitory

38
Q

Superior cerebellar peduncle carries ______ infor from cerebellum… Whereas the middle and inferior cerebellar peduncles carry _____.

A

Output

Input

39
Q 
•Tracts Interrupted
–Ascending Spinothalamic
–Descending Motor Tracts
•Lateral Corticospinal
•Medial Corticospinal
•Rubrospinal
•Reticulospinal
•Vestibulospinal

What syndrome is this?

A

Anterior

Issues diaphragm and down!

40
Q

•Typically see at Cervical Level
–Spinothalamic Tract invloved as fibers cross at the level of lesion

What syndrome ?

A

Central cord syndrome

41
Q 
•Losses Ipsilateral to lesion
–Loss of LMNs
–All Sensations
•Below Lesion
–Voluntary motor control
–Conscious Proprioception (Dorsal Column)
–Discriminative Touch (Dorsal Column)

•Pain and Temperature lost Contralaterally (Spinothalamic Tract)

Which syndrome?

A

Brown-sequard syndrome

42
Q

Choroid plexus produces?

A

Csf

43
Q

Brodmans area for somatosensory cortex

A

3 , 1 2

44
Q

Brodman s area for premotor cortex?

A

6

45
Q

Brodman s area for frontal eye fields

A

8

46
Q

Crossed extension circuit

A

When the reflex occurs the flexors in the withdrawing limb contract and the extensors relax, while in the other limb, the opposite occurs.

47
Q

Only type of neuron cell that projects cells outside of it?

A

Pyramidal

48
Q

What serves as a relay center for sensory input into the cerebellum?

A

Inferior olive

Anatomy (42 decks)

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