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aa Neuro 3 > Intro to Brainstem I > Flashcards

Intro to Brainstem I Flashcards

1
Q

Brainstem has 3 Main Functions

A

CONDUIT FUNCTIONS
INTEGRATIVE FUNCTIONS
CRANIAL NERVE FUNCTIONS

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2
Q

CONDUIT FUNCTIONS

A

Transit and processing stations for ascending and descending pathways to and from cerebrum, cerebellum, and spinal cord

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3
Q

INTEGRATIVE FUNCTIONS

A

“Keeps You Alive!”: Integrative functions, such as consciousness, sleep-wake cycle, muscle tone, posture, respiratory and cardiovascular control

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4
Q

CRANIAL NERVES in Brainstem

A

Home of the cranial nerves (III-XII)

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5
Q

Midbrain embryo

A

mesencepholon

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6
Q

Medulla embryo

A

Myelincephlon

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7
Q

Pons embryo

A

Metencephlon

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8
Q

Brainstem can also be divided longitudinally into 3 divisions

A

Tectum or “roof”- sup/inf colliculi
tegmentum
Basis

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9
Q

Brainstem can also be divided into medial and lateral divisions

A

Corresponds to alar (dorsal/sensory) and basal (ventral/ motor) plates

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10
Q

Sulcus limitans

A

Separates Alar and Basal

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11
Q

Corticospinal

A

Motor

Decussates at base of medulla

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12
Q

Dorsal Column – Medial Lemniscus

A

Fine touch, vibration, proprioception

Decussates mid-medulla

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13
Q

Anterolateral System (spinothalamic)

A

Pain and temp

Decussates at level of spinal cord

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14
Q

Peduncles

A

Means “stalk”

Collection of tracts that travel together from one part of the brain to another

There is 1 cerebral peduncle (called “the cerebral peduncle)

There are 3 cerebellar peduncles (called superior, middle and inferior cerebellar peduncle)

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15
Q

There are ____ cerebellar peduncles (called ____________________)

A

Three

superior, middle and inferior cerebellar peduncle

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16
Q

There is _____ cerebral peduncle (called ___________)

A

one

“the cerebral peduncle

17
Q

Bundle of axons in CNS

A

Tract

18
Q

Bundle of tracts that connect L and R cerebral hemispheres

A

Commissure

19
Q

Bundle of tracts that travel from one region of the CNS to another and look like a “stalk = _______?

A

Peduncle

20
Q

Bundle of axons in PNS = _______?

A

Nerve

21
Q

Peduncles- Cerebrum

A

cerebellum–> CP–>

Spinal cord
Pons
CN nuclei

22
Q

Peduncles-Cerebellum SCP

A

SCP

—>

23
Q

Peduncles- Cerebellum MCP

A

cerbral cortex–> Pons–> MCP–> cerebellum

24
Q

Peduncles- Cerebellum ICP

A

ICP

—>

25
Q

Thalamus Nucleus VPL

A

input: spinothalamic DCML
Destination: 1o somatosensory

26
Q

Thalamus Nucleus VPM

A

Input: Trigeminal
Destination: 1o somatosensory

27
Q

Thalamus Nucleus LGN

A

Input: CN 2
Destination: Calcarine sulcus

28
Q

Thalamus Nucleus MGN

A

Input: Sup. Olive, Inf. Coliculus
Destination: Auditory Cortex, Temp Lobe

29
Q

Thalamus Nucleus VL

A

Input: Basal Ganglia
Destination: Motor Cortex

30
Q

Upper Medulla

Corticospinal tract is in?

A

Pyramid

aa Neuro 3 (24 decks)

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