The Brainstem Flashcards

0
Q

Between the peduncle
Also called the basal cistern
Impt for neurosurgeon, because of the nerves thst pass through

A

Interpeduncular fossa / interpeduncular cistern

Tumors can pass through and compress the cranial nerves

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1
Q

Comprise the brainstem

A

Diencephalon
Midbrain (cerebral peduncle)
Pons (basis pontis)
Medulla oblongata

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2
Q

Junction between the pons and the medulla

A

Pontomedullary sulcus

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3
Q

Largest cerebellar peduncle

A

Middle cerebellar peduncle / brachium pontis

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4
Q

Enlarging ventricle, stimulation of obex leads to…

A

Vomiting

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5
Q

Sensory neurons located dorsally

A

Motor neurons located ventrally

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6
Q

Distinction between motor and sensory persist up to this because of

A

Sulcus terminans

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7
Q

Afferents to the special senses

A

SSA

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8
Q

Sensory nerves that develop in association with the GI system

A

SVA

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9
Q

Chewing
Swallowing and digesting
Smiling

A

SVE

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10
Q

Know about:

A

Edinger - Westphal nucleus

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11
Q

Longest nerve ever

A

Spinal nucleus of CN V

-for pain in the face

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12
Q

Ambiguous nucleus in the medulla

A

CN IX and X, histologists can’t tell them apart

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13
Q

Cross-over to the other side

A

Decussation

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14
Q

There is no such thing as left or right brain

A

True

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15
Q

Means putting layers and layers of films and wiring

Impt when dealing with spinal cord problems

A

Lamination

16
Q

Portion of the reticular formation comcerned with arousal
Damage leads to coma
Can be overexcited by psychotopic drugs, caffeine and overreactive - ADHD

A

ARAS

Ascending Reticular Activating System

17
Q

Moves the eyeballs in such a way that we don’t get cross-eyed

A

Medial longitudinal fasciculus

18
Q

Cranial nerve 6 will exit here

19
Q

Prone to forming tumors. What cranial nerve?

20
Q

Largest opening where cranial nerves pass

A

Foramen magnum

21
Q

What is impt with 4th ventricle?

22
Q

Cranial nerves - extramedullary

A

Tracts - intramedullary

23
Q

Red nucleus

A

Iron is deposited
Mainly responsible for movement in animals
For babies

24
Superior + inferior ____________
Corpora quadrigemina
25
Know!!!
Only one of its kind, exits dorsally
26
Receives afferents from hypothalamus, amygdala Activated during stress Neurons seem to be depleted in PTSD patients
Locus ceruleus in Rostral pons
27
Gives you the butterflies Allergic reactions Blood pressure rising
Solitary tract and nucleus of the vagus
28
Decussation of the motor pathway | Contain the descending fibers of the corticospinal tract
Pyramid
29
For lab exam!
Gracile tubercle (clava)