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Neuroscience > Week 2: The Midbrain Structures Location and Functions > Flashcards

Week 2: The Midbrain Structures Location and Functions Flashcards

1
Q

The superior colliculi is located in the:

A

rostral tectum

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2
Q

The inferior colliculi is located in the:

A

caudal tectum

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3
Q

what structure is located specifically in the rostral tectum?

A

superior colliculi

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4
Q

what structure is located specifically in the caudal tectum?

A

inferior colliculi

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5
Q

what is the function of the superior colliculi?

A

it is a visual relay system

helps relay connections that correlate head and neck movements

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6
Q

what is the function of the inferior colliculi?

A

auditory relay station

helps relay connections from peripheral auditory structures to cortical auditory regions

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7
Q

What structures are located in the rostral tegmentum?

A

oculomotor (CN 3) nuclei
ventral tegmental area
red nuclei

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8
Q

what structures are located in the caudal tegmentum?

A

trochlear (CN 4) nuclei
superior cerebellar peduncle
raphe nuclei

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9
Q

What two structures located in the caudal tegmentum can also be located in the Rostral Pons?

A

superior cerebellar peduncle

raphe nuclei

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10
Q

where can i locate the raphe nuclei?

A

Caudal tegmentum and rostral pons

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11
Q

where can i locate the superior cerebellar peduncle?

A

the caudal tegmentum and the rostral pons

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12
Q

where can i locate the trochlear nuclei?

A

caudal tegmentum

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13
Q

where can i locate the oculomotor nuclei?

A

rostral tegmentum

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14
Q

where can i locate the red nuclei?

A

rostral tegmentum

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15
Q

where can i locate the ventral tegmental area?

A

rostral tegmentum

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16
Q

What is the function of the ventral tegmental area?

A

plays a role in reward system (reinforcing behavior) with projections to the limbic system and cortex
major dopamine producing area

17
Q

Which structure plays a role in reward system and has projections to the limbic system and cortex?

A

ventral tegmental area

18
Q

what are the 7 structures (that we have to identify) located in the tegmentum?

A 
substantia nigra
ventral tegmental area
red nuclei
oculomotor nuclei
trochlear nuclei
superior cerebellar peduncle
raphe nuclei
19
Q

what is the function of the substantia nigra?

A

major dopamine producing and storage area

20
Q

The substantia nigra is a part of the _________ _________ and is involved in ___________.

A

basal ganglia; movement

21
Q

The function of the red nuclei is:

A

motor coordination

motor control for flexor muscle groups

22
Q

what is the function of the superior cerebellar peduncle?

A

it is relay station to the cerebellum

23
Q

what is the function of the raphe nuclei?

A

Major serotonin producing neurons in the brain.

24
Q

What structures are located in the basis pedunculi?

A

Crus Cerebri and the cerebral peduncle

25
Q

The Cerebral peduncle is made up of the:

A

basis pedunculi and the substantia nigra

26
Q

The function of the Crus Cerebri is:

A

large bundles of somatotopically organized axons containing fibers from motor pathways

27
Q

The cerebral peduncle is located in the

A

basis pedunculi and the ventral tegmentum

28
Q

what is the function of the cerebral peduncle?

A

contains large descending motor nerve tracts

29
Q

The cerebral peduncles are ___ stalks that attach the cerebrum to the _________ at the ________surface of the membrane that arise from the ventral _____

A

2; brainstem; ventral; pons

30
Q

Periaqueductal Gray is found in which two sections of the midbrain?

A

tectum and tegmentum

31
Q

________ matter surrounds the cerebral aqueduct.

A

gray

32
Q

The periaqueductal gray plays a major role in:

A

pain modulation (inhibition), autonomic regulation and emotion

Neuroscience (10 decks)

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