Spine And Spinal Cord

Question 1

Myelopathy

Answer 1

Disorder resulting in spinal cord dysfunction

Question 2

Dermatome

Answer 2

Cutaneous area served by an individual sensory root

Question 3

Myotome

Answer 3

Muscles innervated by an individual motor root

Question 4

Radiculopathy

Answer 4

Sensory and/or motor dysfunction due to injury to a nerve root

Question 5

Paresthesia

Answer 5

An abnormal sensation, can include burning, tingling, tickling, or prickling (pins and needles)

Question 6

Dysesthesia

Answer 6

Impairment of sensation short of anesthesia

Question 7

C5:
Dermatome -
Myotome -
Reflexes -

Answer 7

Dermatome - Shoulder, lateral arm
Myotome - Infraspinatus, biceps
Reflexes - Biceps

Question 8

C6:
Dermatome -
Myotome -
Reflexes -

Answer 8

Dermatome - lateral forearm, thumb
Myotome - wrist extension, biceps
Reflexes - biceps, brachioradialis

Question 9

C7:
Dermatome -
Myotome -
Reflexes -

Answer 9

Dermatome - Middle finger
Myotome - Triceps
Reflexes - Triceps

Question 10

L4:
Dermatome -
Myotome -
Reflexes -

Answer 10

Dermatome - anterior leg, medial malleolus
Myotome - knee extension
Reflexes - knee

Question 11

L5:
Dermatome -
Myotome -
Reflexes -

Answer 11

Dermatome - shin, big toe
Myotome - foot dorsiflexion, great toe
Reflexes - None

Question 12

S1:
Dermatome -
Myotome -
Reflexes -

Answer 12

Dermatome - Small toes
Myotome - plantarflexion
Reflexes - achilles

Question 13

Lhermitte’s Sign:

Answer 13

Extend neck and get shooting pain down spine

Question 14

Conus medullaris vs Cauda equina

Answer 14

Conus:

• SYMMETRIC saddle anesthesia
• EARLY bladder dysfunction
• EARLY bowel/sexual dysfunction

Cauda:

• EARLY root pain radiating to legs
• leg weakness and decreased DTRs

Question 15

Urinary problems

Frontal:
Spinal:
Sacral:

Answer 15

Frontal: inappropriate voiding
Spinal: inappropriate timing/coordination (Hypogastric from sympathetic-spastic bladder)
Sacral: flaccid toneless bladder (S2-S4)