Spinal Cord

Question 1

Spinal cord extends from

Answer 1

Foramen Magnum to L2 Vertebra

Question 2

Region for Lumbar Puncture

Answer 2

L2 to S2

Question 3

Medial Division FIbers

Answer 3

Question 4

What sensations travel in

1a

1b

A-beta

Answer 4

Question 5

Lateral Division Fibers

Answer 5

A - Delta and C fibers

Question 6

What sensations travel in

A-Delta

C

Answer 6

Question 7

Alpha motor neurons vs gamma motor neurons

Answer 7

Question 8

Regions of spinal cord with large ventral horn

Answer 8

C5-T1, L2-S2

Question 9

Topographic organization of ventral horn

Answer 9

Question 10

UMN have what net effect on muscles

Answer 10

A net inhibitory effect

Question 11

Axons in corticospinal tract/pyramidal tract cross at

Answer 11

Question 12

Function of axons in corticospinal tract

Answer 12

Voluntary refines movements of distal extreities

Question 13

Reticulospinal and Vestibulospinal tracts from

Answer 13

Extensor biased UMN

Question 14

reticulospinal tract activate

Answer 14

Extensor neurons for postural support

Question 15

Lateral vestibulospinal tract fascilitates

Answer 15

alpha motor neurons that innerate extensor muscles

Question 16

Medial vestibulospinal tract facilitates

Answer 16

alpha motor neurons innervating neck and upper limb muscles in response to vestibular stimul

Question 17

Dorsal column pathway/medial lemniscal system carries which sensory fibers

Answer 17

A-beta, 1a, 1b fibers

Question 18

Upper limb vibration, eissner, proprioception all travel in

Answer 18

Lateral column - Fasciculus cuneatus

Question 19

Lower limb vibration, touch, proprioception ravel in

Answer 19

Medial Column - fasciculus gracilis

Question 20

Dorsal Column pathway neurons cross at

Answer 20

Question 21

Secondary Sensory neurons of dorsal column tract synapse on

Answer 21

Dorsal column pathway secondary neurons synapse on the ventral posterior lateral nucleus

Question 22

Anterolateral system contains which nerve fibers

Answer 22

A-delta and C fibers

Question 23

In what tract do anterolateral primary sensory neurons ascend or descend a few segments

Answer 23

Lissauer’s tract

Question 24

A-delta fibers carry which pain type and which temperature type

Answer 24

Sharp pain and cold

Question 25

C fibers carry which pain type and temperature type

Answer 25

Aching pain and warmth

Question 26

AnteroLateral system neurons travel in which tract through spinal cord

Answer 26

Spinothalmic tract

Question 27

Anterolateral pathway secondary neurons synapse on

Answer 27

Ventral posterior lateral nucleus

Question 28

Rule regarding sensory neuron crossing

Answer 28

Must be in vicinity of secondary neuron cell body

Question 29

Spinocerebellar system function

Answer 29

unconcious proprioreception to cerebellum

Question 30

Lower Limb proprioception travelling to cerebellum travel in

Answer 30

First Clarke Nucleus and then through Dorsal Spinocerebellar

Question 31

Upper limb proprioception travelling to cerebellum travels through

Answer 31

cuneocerebellar tract after first passing htrough external cuneate nucleus

Question 32

Which cells synapse with pre-ganglionic sympathetic neurons in the intermediolateral cell column

Answer 32

Descending hypothalmic axons

Question 33

3 Types of Bladder disorders occur at which levels of the spinal cord INfantile bladder Spastic bladder Flaccid or atonic bladder

Answer 33

Question 34

Rubrospinal tract crosses at (site of decussation)

Answer 34

Ventral tegmental

Question 35

Horners Syndrome

Answer 35