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Neuroanatomy > Deeper Parts of the CNS (Lecture #3) > Flashcards

Deeper Parts of the CNS (Lecture #3) Flashcards

1
Q

structures of the basal ganglia

A

caudate
putamen
globus pallidus

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2
Q

basal ganglia is made up of (axons/cell bodies)

A

cell bodies

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3
Q

function of basal ganglia

A

refining movement
help determine extent of speed of movement
help suppress unwanted movement

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4
Q

are cerebral hemispheres longer in the anterior-posterior direction or the superior-inferior direction?

A

anterior-posterior

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5
Q

internal capsule

A

axons going from thalamus to cerebral cortex
of
axons going from cerebral cortex to basal ganglia, thalamus, brainstem, or spinal cord

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6
Q

parts of internal capsule

A

anterior limb
genu
posterior limb

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7
Q

3 major parts of the diencephalon

A

thalamus
hypothalamus
epithalamus (pineal gland)

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8
Q

what is the largest portion of the diencephalon

A

thalamus

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9
Q

how many thalami does the brain have?

A

1 for each hemisphere

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10
Q

what is the only collection of cell bodies that can send info directly to the cerebral cortex?

A

thalamus

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11
Q

hypothalamus function

A

homeostasis

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12
Q

how many hypothalami do we have?

A

1

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13
Q

mammillary bodies

A

part of the hypothalamus involved in memory

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14
Q

epithalamus

A

thought to be involved in sleep-wake cycle

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15
Q

parts of brainstem

A

midbrain
pons
medulla

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16
Q

cranial nerves attached to cerebral hemispheres

A

CN I

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17
Q

cranial nerves attached to diencephalon

A

CN II

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18
Q

cranial nerves attached to midbrain

A

CN II, IV

19
Q

cranial nerves attached to pons

A

CN V

20
Q

cranial nerves attached to junction between pons and medulla

A

CN VI-VIII

21
Q

cranial nerves attached to medulla

A

CN IX, X, XII

22
Q

cranial nerves attached to spinal cord

A

CN XI

23
Q

cranial nerves

A 
I Olfactory
II Optic
III Oculomotor
IV Trochlear
V Trigeminal
VI Abducens
VII Facial
VIII Vestibulocochlear
IX Glossopharyngeal
X Vagus
XI Accessory
XII Hypoglossal
24
Q

CN II function

A

(optic)

vision

25
Q

CN III function

A

(oculomotor)

eye movement, makes pupil smaller

26
Q

CN IV function

A

(trochlear)

eye movement

27
Q

CN V function

A

(trigeminal)
face sensation
muscles of mastication

28
Q

CN VI function

A

(abducens)

eye movement

29
Q

CN VII function

A

(facial)
movement of face
taste

30
Q

CN VIII function

A

(vestibulocochlear)
hearing
sensation of movement

31
Q

CN IX, X function

A

(glossopharyngeal, vagus)
swallowing
gagging
voice quality

32
Q

CN XI function

A

(accessory)
turn head
shrug shoulders

33
Q

CN XII function

A

(hypoglossal)

move tongue

34
Q

what is inside the brainstem?

A
  1. cranial nerve nuclei
  2. reticular formation
  3. 3 long pathways
  4. other nuclei
35
Q

cranial nerve nuclei

A

cell bodies for muscles in neck and head
cell bodies for receiving sensory info from head and neck
parasympathetic cell bodies

36
Q

reticular formation

A

net-like collection of cell bodies and axons in the center area of the brainstem

37
Q

function of rostral part of reticular formation

A

maintaining consciousness

38
Q

function of caudal part of reticular formation

A

motor and autonomic functions (swallowing, vomiting)

39
Q

3 long pathways thru brainstem

A
  1. corticospinal tract (always ventrally located)
  2. dorsal column medial lemniscal pathway (medial)
  3. anterolateral pathway (lateral)
40
Q

other nuclei in brainstem

A

midbrain: red nucleus, substantia nigra
pons: pontine nuclei

41
Q

how many lateral ventricles do we have?

A

one in each hemisphere

42
Q

where is the third ventricle located

A

between thalami

43
Q

where is fourth ventricle located

A

dorsal aspect of pons

Neuroanatomy (20 decks)

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