Anatomy of the Cerebellum/Spinal Cord Flashcards

1
Q

4 paired cerebellar nuclei

A

Fastigial
Globose
Emboliform
Dentate

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2
Q

controls stance/gait, and muscle control

A

Fastigial

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3
Q

Lesion on the this area causes Abasia

A

Fastigial

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4
Q

Lesion on on the Dentate area causes?

A

delay in initiating and terminating movements, tremorsm intention tremor

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5
Q

3 layers of the cerebellar cortex

A

Molecular
Purkinje
Granular

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6
Q

Vascular Supply of the Cerebellum

A
Posterior inferior (PICA)
Anterior Inferior (AICA)
Superior Cerebellar
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7
Q

3 meninges that protects the Spinal Cord

A

Dura
Arachnoid
PIA

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8
Q

golden period for the spinal cord until irreversible damage occurs

A

2 hours

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9
Q

Terminal portion of the spinal cord

A

Conus Medullaris

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10
Q

Firbrous extension of the PIA mater

A

Phylum terminale

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11
Q

Collection of nerve roots at the inferior end of the vertebral column

A

Cauda Equina

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12
Q

2 major blood vessels of the SC

A

2 posterior - 1/3 of the cord

1 anterior 2/3 of the cord

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13
Q

Reinforces the anterior and posterior spinal arteries

A

Radicular artery

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14
Q

Radicular artery is a.k.a.

A

Adamkewikz

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15
Q

Adamkewikz can be damaged in

A

Kaisons disease and AAA repair

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16
Q

3 veins responsible for hematogenous spread of metastastic CA

A

External vertebral plexus
Internal vertebral plexus
Basivertebral plexus

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17
Q

Vertebral Venous plexus is a.k.a

A

Batson’s plexus

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18
Q

Herniation of the cord

A

Brown Sequard syndrome

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19
Q

3 SC tracts

A

Corticospinal Tract
Dorsal Column
Spinothalamic

20
Q

Lesion of this area produces greater weakness of the ARM>Leg

“Sensory Sparing”

A

Central Cord Syndrome

21
Q

Complete paralysis of the level of lesion
hyperestria- excessive pain
(-)pain/temp
(+)proprioception

A

Anterior cord Syndrome

22
Q

Posterior column is responsible for

A

Vibration and proprioception

23
Q

Lateral Corticospinal is responsible for

A

fine motor movements of the upper and lower limb

24
Q

Lateral Spinothalamic tract

A

Pain and temperature

25
Q

(-)virbratory or position sense
Paralysis below the lesion
(+)pain/temp
Extremely rare

A

Posterior cord Syndrome

26
Q

EXTRA or INTRA medullary?
Pain first before weakness _______ example ______
Weakness before pain _________ ex. ________

A

pain>weakness - Extramedullary - compression fracture

Weakness>pain - Tumor “Epindymoma”

27
Q

Anterior Spinothalamic tract conveys _____

A

light touch

28
Q

Transection of T1-L1 results to

A

Paraplegia

29
Q

Transection of the cervical region

A

Quadriplegia

30
Q

High Cervical Region

A

C1-C3

31
Q
Dermatomal level of each
C5
C8
T4
T7
T10
L1
L4
A
C5- shoulder
C8-little finger
T7- xyphoid
T4 - nipple
T10 - umbilicus
L1 - inguinal
L4- medial portion of big toe
32
Q

(-) vibration/ position sense
Slow degeneration of the dorsal/posterior column
Tertiary Syphillis
Argill Robertson’s Pupil “prostitutes pupil”

A

TABES DORSALES

33
Q

Pupil that accomodates but does not react

A

Prostitutes pupil (argill robertsons pupil)

34
Q

Uncrossed tract from the nucleaus of Clarke
None of the impulses reaches consious levels
fine coordination of posture and movement of individual limb muscle

A

Posterior spinocerebellar tract

35
Q

Crossed tract concerned with coodrination and movement of Lower Extremeties

A

Anterior spinocerebellar tract

36
Q

Upper limb equivalent of posterior spinocerebellar tract

A

Cuneocerebellar tract

37
Q

For behavioral awareness, modification of motor and sensory activities and modulation of Electrocortical Activity

A

Spinoreticular Tract

38
Q

Motor Pathway for Discrete voluntary skilled movements

A

Corticospinal System

39
Q

3 divisions of the Corticospinal System

A

Lateral - larg, crossed
Anterior - small uncrossed
Anterolateral - minute, uncrossed

40
Q

3 descending tracts from midbrain and their functions

A

Tectospinal tract - postural movement in response to visual and auditory stimuli
Rubrospinal tract: Flexor musle tone
Interstitiospinal tract: component of descending MLF

41
Q

MC pituitary Tumor

A

Prolactinoma

42
Q

Treatment for prolactinoma

A

Bromocriptine

43
Q

Compression of this area causes bilateral hemianopsia.

Secondary to?______

A

Optic Chiasma compression 2 to Enlargement of the pitruitary gland

44
Q

accessory oculomotor nucleus that is the parasympathetic pre-ganglionic nucleus that innervates the iris sphincter muscle and the ciliary muscle.

A

Edinger westpahl nucleus

45
Q

Visual Cortex Brodmanns Area

A

17

46
Q

Fubers of the Optic Chiasm

A

Temporal (Lateral) Nasal (Medial)