Brainscape's Knowledge GenomeTM

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


See full index

Neuroanatomy > lab final > Flashcards

lab final Flashcards

1
Q

Medial lemniscus is what kind of pathway and is responsible for what?

A

it is an conscious pathway that is responsible for proprioception and touch

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

corticospinal tract contains what kind of fibers?

A

descending motor neurons that control skeletal muscle to the limbs and the trunk

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

inferior olivary nucleus contains what kind of fibers?

A

climbing fibers

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

where do the climbing fibers of the inferior olivary nucleus project to?

A

they travel to the cerebellum

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

what is the inferior olivary responsible for?

A

it coordinates signals from the spinal cord to the cerebellum to regular motor coordination and learning

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

the spino-olivary tract transmits what?

A

joint proprioception to the inferior olivary nucleus

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

are the pyramids of the medulla located posteriorly or anteriorly?

A

anteriorly

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

substantia projects what fibers to which pathway?

A

dopaminergic fibers to the nigrostriatal pathway

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

what neurotransmitters is released at the synapses of substantia nigra?

A

dopamine

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

what is the most critical role of substantia nigra?

A

it inhibits unwanted movements which helps control muscle movements

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

what structure of midbrain does the dopamine released by the substantia nigra control?

A

the globus pallidus

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

cerebral peduncle - ______ bulge on the midbrain that holds mostly ______________.

A
  1. ventral

2. descending corticospinal fibers.

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

cerebral aqueduct- this passageway connects what two structures?

A

the 3rd ventricle and the 4th ventricle

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

superior colliculus is responsible for ?

A

unconscious head and eye movements to track motions

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

what tract does the superior colliculus give rise to?

A

the tectospinal tract

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

superior colliculus brings point of light in line with what eye structure?

A

the fovea

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

the superior colliculus descends and travels through what to synapse where?

A

travels through the contralateral anterior funiculus to the cervical spinal cord, where via synapses with motor neurons it stimulates reflexive neck movements based on some visual stimuli (and possibly other stimuli).

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

superior colliculus recieves information from what structures?

A

the spinotectal and the inferior colliculus

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

periaquaductal gray is a structure that secretes what?

A

endorphins and enkephalins to decrease pain

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

red nucleus activates what while inhibiting what?

A

activates flexors while inhibiting the extensors

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Choroid plexus-

A

it is composed of ependymal cells and makes cerebrospinal fluid. CSF removes metabolic waste and helps circulate nutrients and sometimes medications through the brain.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

thalamus main function is to?

A

relay for sensory pathways

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

which three structures relay information at the thalamus

A

the VPL, LGB and the MGB

24
Q

what would happen if the thalamus was damaged?

A

permanent coma

25
Q

what kind of fibers are located in the internal capsule>

A

ascending and descending fibers

26
Q

what fibers are located in the anterior limb of the internal capsule?

A

frontopontine fibers (they connect the frontal lobe to the pons).

27
Q

what kind of fibers does the posterior limb of the internal capsule contain

A

The posterior limb has descending corticospinal tract fibers and sensory fibers from the medial lemniscus.

28
Q

internal capsule is located near

A

the putamen and the globus pallidus

29
Q

the putamen is apart of what brain structure

A

the basal ganglia

30
Q

the putamen connects what structures

A

the the substantia nigra, globus pallidus, thalamus, and claustrum.

31
Q

the job of the putamen?

A

This structure is involved in motor planning, execution of motor movements (controlling amplitudes of movements and movement sequences), and reinforcement learning (learning to maximize an outcome you desire).

32
Q

claustum connects what to the thalamus>

A

prefrontal cortex

33
Q

the claustrum is most active when what?

A

sustained directed attention.

34
Q

Mamillary body- it is involved in ?

A

spatial memory and recollective memory

35
Q

cingulate gyrus regulates what?

A

aggressive behavior, materanl bonding, emotional response to pain, vocalizing emotions, , endocrine and ANS control

36
Q

fornix is needed for what>

A

memory consolidation

37
Q

Caudate nucleus is responsible for what

A

motor processes, goal directed bahavior

38
Q

what structure of the corpus striatum is responsible for body and limb posture, accuracy of directed motions… and facilitating desired motions while suppressing undesired motions?

A

the caudate nucleus

39
Q

what portion of the corous striatum is responsible for choosing to engage in actions that result in more desirable outcomes for you by using information from past experiences to influence future decisions

A

caudate nucleus

40
Q

Insular lobe is responsible for what?

A

taste, expierencing emotions, addictive behavior, empathy

41
Q

globus pallidus is responsible for what?

A

regulation of voluntary body body movements

42
Q

what is the main nucleus of the basal ganglia?

A

the globus palidus

43
Q

what is secreted by the globus pallidus and why?

A

gaba > to inhibit unwatned movements

44
Q

what portion of the brain is targeted early in alzhiemers?

A

hippocampus

45
Q

what is the hippocampus responsible for>

A
  • it is part of the limbic system and helps consolidate memory formation. It is active for spatial memory to give you a sense of north-south-east-west
46
Q

amygdala responsibel for waht?

A

fear and emotional responses

47
Q

lentiform nucleus is composed of?

A

putamen and the globus pallidus

48
Q

principle seat of the soul?

~ descartes

A

pineal gland

49
Q

inferior colliculus is responsible for what?

A

midbrain structure involved in reflexive auditory neck movements. You turn your neck in the direction of a loud sudden sound.

50
Q

superior colliculus is responsible for?

A

midbrain structure involved in reflexive eye and neck movements. For example, it is heavily active in tracking a baseball flying towards you.

51
Q

corpus callosum is composed of what fibers?

A

commissural fibers

52
Q

what portion of the brain is helps make us more coordinated left to right as you age

A

the corpus callosum

53
Q

splenium - the ______part of the corpus callosum near the cerebellum

A

posterior

54
Q

what portion of the corpus callosum is responsible for transmitting somatosensory information primarily between the parietal lobes.

A

splenium part

55
Q

what is the portions that is located between the splenium and body of the corpus callosum?

A

the isthmus

Neuroanatomy (11 decks)

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