SA- all in the skull Flashcards

1
Q

is there is an incr in CO2 or a decr in O2 cerebral bl vessels will _____

A

dilate

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2
Q

damage to PICA = _____ sx

S/s:_______

A

wallenberg sx

s/s: Ipsi loss of (s) to face, contra loss of (s) to body

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3
Q

_____ art. off the vert. art. supplies bl to the anterior 2/3 of the SC

____ art. off the radicular art. supplies bl to the posterior 1/3 of the SC

A

anterior 2/3rd: anterior spinal art.

posterior 1/3rd: posterior spinal art.

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4
Q

R. carotid art. comes off the ____

Left carotid art. comes off the ___

Bifurcates at:_____

A

R.: R. Brachiocephalic

L: Aorta

bifurcates at: C3/4

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5
Q

The great cerebral V. of galen drains into the ____ sinus

superior cerebral V. goes int the ____ sinus –> found in the falx cerebri

A

great cerebral v= straight sinus “Great is staight”

superior cerebral V= superior sagittal sinus
“Superior is superior”

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6
Q

Name the flow of the CSF

A

Lateral ventricles–> foramen monroe–> 3rd ventricle –> cerebral aqueduct of sylvius –> 4th ventricle –> foramen of magendie & foramen of Lushka –> reabsorbed in arachnoid villi in superior sagittal sinus

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7
Q

damage to middle meningeal art. = ______ hemorrhage

A

epidural hemorrhage

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8
Q

damage to venous system= ______hemorrhage

A

subdural hemorrhage

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9
Q

Beri aneurysm = ______ hemorrhage

A

subarachnoid hemorrhage

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10
Q

Rubrospinal = _____ nucleus

fxn: _____

A

rubrospinal = Red Nucleus

fxn: prox. M flexors of upper and lower ext.

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11
Q

fxn of the reticulospinal tract?

A

Extensor M of back and arms

except: back muscles innervated by a plexus

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12
Q

Fxn of the tectospinal tract

also contains the superior and inferior colliculus
- fxn:

A

Neck Muscles

superior colliculus: reflex to light
inferior colliculus: sound

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13
Q

______ tract goes to the EXTENSOR M’s of the back and legs.

It also supplies the medial longitudinal fascicullus

A

Vestibulospinal tract

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14
Q

____ motor neurons are ____ fibers for tone of the back extensors

A

gamma motor neurons

intrafusal fibers for tone

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15
Q

______ tract is for the FLEXORS of the Distal Ext.

A

Corticospinal (pyramids)

Lateral decussates at: medulla
Ventral decussates at: spinal level

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16
Q

The corticospinal tract for the FLEXORS of the DISTAL ext. decussates:

Lateral tract:____
Ventral tract: ____

A

Lateral: at the medulla
Ventral: at the spinal level

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17
Q

Proximal muscle flexors of the UE/LE:____ tract

Distal muscle flexors of teh UE/LE: ___tract

A

Prox: Rubrospinal tract

Distal: Corticospinal tract

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18
Q

____ tract: extensors for the back and ARMS:

_____ tract: extensors for the back and LEGS

A

Back and arms: Reticulospinal

Back and legs: vestibulospinal

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19
Q

____ fibers are for movement of the muscles. Muscles will use ____ motor neurons for movement

A

extrafusal fibers= movement
alpha motor neurons

(tone= intrafusal fibers, gamma motor neurons)

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20
Q

_____ blocks pn that comes through the spinothalamic tract

location: Rexed lamina ___

____ tract goes through it

A

substantia gelatinosa

location: rexed lamina II
tract: tract of lissauer

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21
Q

Name the stucture at each location of the rexed lamina:

II: \_\_\_\_\_
VII:\_\_\_\_
VIII:\_\_\_\_
IX:\_\_\_\_
X:\_\_\_\_
A
II: Substantia gelatinosa (blocks pn)
VII: Nucleus dorsalis of clark 
VIII: Anterior horn, alpha motor (movement)
IX: Anterior horn, gamma motor (tone) 
X: grey commissure (central canal)
22
Q

_____ are the receptors for the spinothalamic tract

Fiber type:____

A

Free naked N endings

type: unmyelinated C fibers

23
Q

The lateral spinalthalamic tract synapses in the posterior horn in “tract of_____” at the ______

A

tract of lissauers in the substantia gelatinosa (rexed laminae II)

24
Q

Where does the lateral spinalthalamic tract decussate across to?

It then travels up the lateral spinothalamic tract to –> _______ –>ends at: ____

A

Lamina 7

VPL of contra thalamus –> contra cortex

25
Q

cc: MC location for the central canal to be dilated at in syringomyelia

It cuts of the ____ tracts

A

MC location: C5/C6

cuts the spinalthalamic tracts

26
Q

_____ fibers are for fast pain

A

A-delta fibers

27
Q

Fxn of the receptors for the dorsal column:
Meissner’s/ Merkel’s = ______
Pacinian=_______
Ruffini=_____

A

Meissner’s/ Merkel’s = Touch
Pacinian= vibration
Ruffini= joint position

28
Q

Where is the decussation for the posterior columns

A

Medial lemniscus

29
Q

Name the 3 lobes of the Cerrebellum:
_____: balance of spine
_____: balance for arms & legs
____: How the cerebellum talks to cortex

A

Flocculonodular : balance of spine
Anterior lobe : balance for arms & legs
Posterior lobe : How the cerebellum talks to cortex

30
Q
The nuclei of the cerebellum:
\_\_\_\_\_: spine
\_\_\_\_\_: proximal jts (Ex: GH) 
\_\_\_\_\_: Middle jts (EX: Elbow) 
\_\_\_\_\_: distal jts (ex: digits)
A

Fastigal: spine
Globus : proximal jts (Ex: GH)
Emboliform: Middle jts (EX: Elbow)
Dentate: distal jts (ex: digits)

31
Q

Spinocerebellar pathways are for carrying_______

receptors: ____ & ____

A

unconscious proprioception

(dont have to think about balancing while walking)

Receptors: Annulospiral and flower spray

32
Q

name the 3 tracts of the Spinocerebellar pathways?

Ipsi/ contra?

A
  1. Spino-olivary tract
  2. Dorsal spinocerebellar
  3. ventral spinocerebellum: decussates at spinal level –> decusates back at SCP

All are ipsi

33
Q

______ in the midbrain contains the cerebral aqueduct

and CN3 & 4

A

Tegmentum

34
Q
Communication of the cerebellum: 
Superior Peduncle to the \_\_\_\_
Middle peduncle to the \_\_\_
Inferior peduncle to the \_\_\_ 
\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_
info to the cortex:\_\_\_\_\_\_
info back to the cerebellum:\_\_\_
info from the SC and body:\_\_\_\_
A

Superior Peduncle to the: Midbrain
Middle peduncle to the: Pons
Inferior peduncle to the: Medulla
_________________________
info to the cortex: superior peduncle
info back to the cerebellum: middle peduncle
info from the SC and body: inferior peduncle

35
Q

Temoralis: OIA

A

O: temporal fossa
I: coronoid of mandible
A: close jaw

36
Q

Masseter: OIA

A

O: Zygomatic
I: Enternal angle of jaw
A: Close jaw

37
Q

Internal. medial pterygoid: OIA

A

O: Medial pterygoid process
I: Internal angle of jaw
A: Close jaw

38
Q

External/ lateral pterygoid: OIA

A

O: Lateral pterygoid process
I: Disc of the TMJ & condyle of mandible
A: opens/ depresses jaw, prtrude jaw

39
Q

CN 5 = _____gg

A

gasserian gg

40
Q

Sensory goes through the ____ to reach the thalamus

A

VPM

41
Q

____N meets with CN5 V1 at the back of the head

A

C2 “great occipital N”

42
Q

Dorsal columns sensation for the face synapse at the ______ nucleus

A

main trigeminal sensory nucleus

43
Q

Pain at temperature for the face joins the ____ tract

A

spinothalamic tract

down SC to 1st segment-> joins with spinothalamic tract

44
Q

Pain and temp. of the face joins the spinothalamic tract at the ___ nucleus

A

Subnucleus caudalis

45
Q

CN 1:
foramina?
bone ?

A

foramina: cribriform

bone: ethmoid

46
Q

CN 3,4,V1,6:
foramina?
bone ?

A

foramina: superior orbital fissure

bone : sphenoid

47
Q

CN2:
foramina?
bone ?

A

foramina: Optic foramen

bone: sphenoid

48
Q

CN V1, V2, V3
foramina?
bone ?

A

V1: superior orbital fissure/ sphenoid bone

V2: For. rotundum/ sphenoid

V3: Foramen ovale/ Sphenoid

49
Q

CN7:
foramina?
bone ?

A

foramina: Internal auditory meatus–> styloid foramen

bone: temporal bone

50
Q

CN 8:
foramina?
bone ?

A

foramina: Internal auditory meatus

bone: temporal

51
Q

CN 9,10,11
foramina?
bone ?

A

foramina: Jugular foramen

bone: temporal/ occiput

52
Q

CN 12:
foramina?
bone ?

A

foramina: hypoglossal foramen

bone: occiput