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Neuro presentation > Midbrain > Flashcards

Midbrain Flashcards

1
Q

Where is midbrain?

A
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2
Q

What does midbrain divide into?

A

Tectum and cerebral peduncles

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3
Q

What structure in tectum?
What nerve?

A

Colliculi
2 superior 2 inferior
Trochlear inferior to colliculi

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4
Q

What nerve present in cerebral peduncles?
What tract?

A

Occulomotor
Optic tract

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4
Q

What nerve present in cerebral peduncles?
What tract?

A

Occulomotor
Optic tract

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5
Q

Where is tegmentum?

A

Posterior inferior colliculus

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6
Q

What 3 structures form brainstem?

A

Midbrain
Pons
Medulla

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7
Q

Where is tegmentum and tectum?

A

Midbrain

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8
Q

What is in tegmentum? (3)

A

Fibre tracts
3 regions
Red nucleus
Periaqueductal gray
Substantia nigra

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9
Q
A
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10
Q

What do midbrain, pons and medulla form?

A

Brainstem

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11
Q

What is the brainstem?

A

Midbrain (top)
Pons
Medulla (bottom)

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11
Q

What is the brainstem?

A

Midbrain (top)
Pons
Medulla (bottom)

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12
Q

What is cavernous sinus part of?

A

Basal ganglia

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13
Q

What is dopaminergic center of brain?

A

Pars compacta
Cavernous sinus

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14
Q

Function of pars compacta?

A

Dopaminergic
Crucial facilitating movement

15
Q

Where do most dopaminergic neurons project?

A

Striatum (caudate putamen)
Facilitate movement

16
Q

What causes Parkinsons? Symptoms?

A

Loss dopaminergic neurons in substantia nigra pars compacta
Slow movement
Rigidity
Tremors

17
Q

What does pars reticulata contain?

A

GABA neurons

18
Q
A

Neuro presentation (24 decks)

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