Test 2 Neurovascular, Sensation, spinal reflexes

Question 1

Arteries of forebrain

Answer 1

Anterior, Middle, and Posterior cerebral

Question 2

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

Answer 2

medial

corpus callosum

Question 3

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

Answer 3

80%

lateral fissure

Question 4

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

Answer 4

Frontal
Parietal
Parietal
Temporal

Question 5

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 __ __.

Answer 5

2/3
strokes
pyramidal
internal capsule

Question 6

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

Answer 6

Internal Carotid

Question 7

Posterior Cerebral A. Supplies which lobes?

Answer 7

Occipital

Temporal

Question 8

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

Answer 8

Lateral

Question 9

Anterior Spinal A. is on which aspect of medulla?

Answer 9

Ventral and Medial

Question 10

Posterior Spinal A. is on which aspect of the medulla

Answer 10

Dorsal and medial

Question 11

What does Anterior Inferior cerebellar A supply?

Answer 11

Lateral sides of the pons and inner ear

Question 12

What does Pontine Artery supply?

Answer 12

Midpons

Question 13

What does posterior Cerebral artery supply?

Answer 13

Midbrain

Question 14

Superficial venous drainage of Superior Brain is…

Answer 14

Superior Sagittal Sinus

Question 15

Superficial venous drainage of middle brain is…

Answer 15

Cavernous SInus

Question 16

Superficial Venous Drainage of inferior brain is…

Answer 16

Transverse sinus

Question 17

Deep veinous drainage of the brain is…

Answer 17

Great Cerebral vein of galen

Question 18

2 methods of autoregulation of blood flow

Answer 18

H+ ion concentration

Intraluminar pressure

Question 19

Types of non-encapsulated receptors

Answer 19

Free nerve endings
Follicular
Merkel Cell

Question 20

Types of encapsulated receptors

Answer 20

Meissner’s
Ruffini’s
Pacinian

Question 21

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

Answer 21

Dermal Papillae
light
rapid

Question 22

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

Answer 22

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

Question 23

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

Answer 23

vibration
fast
largest
onion

Question 24

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

Answer 24

Parietal

Question 25

Extrafusal fibers are innervated by which motor neuron?

Answer 25

Alpha motor neuron

Question 26

Intrafusal fibers are innervated by which motor neuron?

Answer 26

Gamma motor neuron

Question 27

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

Answer 27

Afferent Rate Degree

Question 28

What 2 receptors are on periosteum of bone?

Answer 28

Pacinian Corpuscle | Ruffini's Corpuscle

Question 29

Muscle spindle activation is produced by ___ fibers

Answer 29

fusimotor

Question 30

Monosynaptic passive activation of muscle spindles is ___

Answer 30

excitatory

Question 31

Polysynaptic passive activation of muscle spindle is __ to __ muscle

Answer 31

inhibitory | antagonistic

Question 32

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

Answer 32

muscle-tendon force excessive

Question 33

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

Answer 33

Excites antagonistic muscle

Question 34

Reticular formation is located at the tegmentum of _(3)_

Answer 34

Midbrain, pons, medulla

Question 35

Raphe is found at the ___ AKA ___ ___

Answer 35

midline | Median Region

Question 36

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

Answer 36

central median | reticulospinal tract

Question 37

Gigantocellular is in ___ region

Answer 37

pontomedullary

Question 38

Parvicellular is __ and is the __ group

Answer 38

small | lateral

Question 39

What functions does reticular formation have?

Answer 39

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

Question 40

The Raphe group transmits ___ ___ AKA ___

Answer 40

Serotonin 5HT | Hydroxytrip

Question 41

ACH is found in the ___ area and influences ___

Answer 41

Pedunculopontine | movement