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CNS > Test 2 Neurovascular, Sensation, spinal reflexes > Flashcards

Test 2 Neurovascular, Sensation, spinal reflexes Flashcards

1
Q

Arteries of forebrain

A

Anterior, Middle, and Posterior cerebral

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2
Q

Anterior Cerebral A. supplies most of the ___ brain and arches over the ___ ___

A

medial

corpus callosum

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3
Q

Middle Cerebral A. receives __% of __ __ blood flow. It is located along the __ __.

A

80%

lateral fissure

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4
Q

Upper branch of Middle Cerebral A. supplies the __ and __ lobes. Lower branch supplies the __ and __ lobes.

A

Frontal
Parietal
Parietal
Temporal

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5
Q

Middle Cerebral A supplies blood to __ of the lateral surface. The leteral striate arteries are an important site for __ because it will lesion ___ track fibers at the __ __.

A

2/3
strokes
pyramidal
internal capsule

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6
Q

25% of blood flow to the posterior cerebral A. comes from the __ __ A.

A

Internal Carotid

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7
Q

Posterior Cerebral A. Supplies which lobes?

A

Occipital

Temporal

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8
Q

Posterior Inferior Cerebellar A. is on which aspect of medulla?

A

Lateral

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9
Q

Anterior Spinal A. is on which aspect of medulla?

A

Ventral and Medial

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10
Q

Posterior Spinal A. is on which aspect of the medulla

A

Dorsal and medial

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11
Q

What does Anterior Inferior cerebellar A supply?

A

Lateral sides of the pons and inner ear

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12
Q

What does Pontine Artery supply?

A

Midpons

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13
Q

What does posterior Cerebral artery supply?

A

Midbrain

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14
Q

Superficial venous drainage of Superior Brain is…

A

Superior Sagittal Sinus

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15
Q

Superficial venous drainage of middle brain is…

A

Cavernous SInus

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16
Q

Superficial Venous Drainage of inferior brain is…

A

Transverse sinus

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17
Q

Deep veinous drainage of the brain is…

A

Great Cerebral vein of galen

18
Q

2 methods of autoregulation of blood flow

A

H+ ion concentration

Intraluminar pressure

19
Q

Types of non-encapsulated receptors

A

Free nerve endings
Follicular
Merkel Cell

20
Q

Types of encapsulated receptors

A

Meissner’s
Ruffini’s
Pacinian

21
Q

Meissner’s receptors are located in the ___ ___ and are responsible for ___ touch. They are __-adapting.

A

Dermal Papillae
light
rapid

22
Q

What type of touch are Ruffini’s receptors responsible for? These receptors are located deeper in the ___ and are __-adapting.

A

Shearing or drag
dermis
slow
Ex. Feeling pressure of wind, continuous to tell how to lean

23
Q

Pacinian receptors sense ___ and are __-adapting. These are the __ receptors and look like an ___.

A

vibration
fast
largest
onion

24
Q

Sensory info from joints, muscles, and skin are integrated in which lobe?

A

Parietal

25
Q

Extrafusal fibers are innervated by which motor neuron?

A

Alpha motor neuron

26
Q

Intrafusal fibers are innervated by which motor neuron?

A

Gamma motor neuron

27
Q

Intrafusal fibers can be primary or secondary ___. Primary measure ___ of stretch and secondary measures __ of stretch.

A

Afferent
Rate
Degree

28
Q

What 2 receptors are on periosteum of bone?

A

Pacinian Corpuscle

Ruffini’s Corpuscle

29
Q

Muscle spindle activation is produced by ___ fibers

A

fusimotor

30
Q

Monosynaptic passive activation of muscle spindles is ___

A

excitatory

31
Q

Polysynaptic passive activation of muscle spindle is __ to __ muscle

A

inhibitory

antagonistic

32
Q

Golgi tendon organs are found at the __-__ junctions and measure the __ of contraction. They also protect the muscle from __ contraction.

A

muscle-tendon
force
excessive

33
Q

What does negative feedback to from a golgi tendon organ do?

A

Excites antagonistic muscle

34
Q

Reticular formation is located at the tegmentum of (3)

A

Midbrain, pons, medulla

35
Q

Raphe is found at the ___ AKA ___ ___

A

midline

Median Region

36
Q

Magnocellular is in __ ___ paramedian. Example is the ___ ___

A

central median

reticulospinal tract

37
Q

Gigantocellular is in ___ region

A

pontomedullary

38
Q

Parvicellular is __ and is the __ group

A

small

lateral

39
Q

What functions does reticular formation have?

A

Levels of awareness- Ascending Reticular Activating system
Modulate muscle tone
Respiration and cardiac rhythm
Emotion of pain-> limbic

40
Q

The Raphe group transmits ___ ___ AKA ___

A

Serotonin 5HT

Hydroxytrip

41
Q

ACH is found in the ___ area and influences ___

A

Pedunculopontine

movement

CNS (6 decks)

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