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Neurobiology > Midbrain and Diencephalon > Flashcards

Midbrain and Diencephalon Flashcards

1
Q

what are the divisons of the forebrain?

A

telecephalon
diecephalon

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2
Q

divisions of hindbrain

A

metencephalon and myelencephalon

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3
Q

what does the metencephalon consist of?

A

pons and cerebellum

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4
Q

what does the myelencephalon consist of?

A

medulla oblongata

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5
Q

midbrain functions

A

motor functioning of the eye
auditory and visual processing

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6
Q

how does the midbrain differ from the forebrain and hindbrain during development?

A

the midbrain does not split

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7
Q

what structure does the midbrain form?

A

cerebral aqueduct

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8
Q

what are the midbrain landmarks?

A

cerebral aqueduct
periaqueductal grey
red nucleus
substantia nigra

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9
Q

what do the colliculi, red nucleus and substantia nigra develop from?

A

alar plates

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10
Q

the basal plates develop into what structure?

A

ocular nuclei

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11
Q

edinger westphal nucleus

A

parasympathetic motor nucleus

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12
Q

structures within the midbrain

A

cerebral aqueduct
PAG
red nucleus
substantia nigra

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13
Q

alar plates develop into which structures

A

red nucleus
substantia nigra
superior and inferior colliculi

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14
Q

the basal plate develops into the oculomotor nerve:

A

occular nuclei
edinger westphal nucleus

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15
Q

Edinger–Westphal nucleus

A

parasympathetic nucleus

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16
Q

ewn fibres innervate with postganglion

A

ciliary ganglion

17
Q

ewn and ciliary ganglion involved with which reflex

A

pupil constriction

18
Q

tectum contains nuclei of

A

superior and inferior colliculi.

19
Q

basis pedunculi

A

crus cerebri
substantia nigra

20
Q

mamillary bodies location

A

ventral surface of midbrain

21
Q

superior colliculi receive input from which areas?

A

visual cortex
retina

22
Q

inferior colliculi sends which inputs to superior colliculi?

A

auditory

23
Q

superior colliuli role

A

integrates visual, auditory and somatosensory information to initiate eye movement towards stimulus

24
Q

superior colliuli role

A

integrates visual, auditory and somatosensory information to initiate eye movement towards stimulus

25
Q

superior colliculi mediates auditory and visual reflex towards stimulus via the

A

tectospinal tract

26
Q

tectospinal pathway

A

midbrain
pons
medulla
cervical cord

27
Q

inferior colliu pathways:

A

receives input from hidbrain
sends input to superior colliculi and thalamus

28
Q

tinnutus is caused by

A

too much excitation within right inferior colliculi

29
Q

tegmentum

A

medial

30
Q

red nucleus

A

motor nucleus

31
Q

PAG function

A

pain suppression

32
Q

motor coordination involves

A

red nucleus sending inputs to cerbellum
sending inputs via rubrospinal tract to spinal cord

Neurobiology (9 decks)

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