dermatomes, myotomes and reflexes

Question 1

What is a dermatome?

Answer 1

sensory distribution of nerves from the spinal level

Question 2

What is a myotome?

Answer 2

a group of muscles innervated by spinal nerves, most muscles are supplied by more than one spinal nerve level

Question 3

What is peripheral nerve cutaneous distribution?

Answer 3

sensory distribution of nerves from the terminal branches and cords (NOT from the spinal level)

Question 4

Spinal level C5//action tested?

Answer 4

Abduction

Question 5

Spinal level (C5)C6//action tested?

Answer 5

elbow flexion

Question 6

Spinal level (C6)C7//action tested?

Answer 6

elbow extension

Question 7

Spinal level (C7)C8//action tested?

Answer 7

finger flexion

Question 8

Spinal level T1//action tested?

Answer 8

finger abduction

Question 9

What is reflex testing?

Answer 9

Using a hammer to stimulate a motor neuron to create contraction of the muscle. Tests both sensory and motor neurons

Question 10

Spinal levels C5-6//reflex test?

Answer 10

Biceps jerk

Question 11

Spinal levels C7-8//reflex test?

Answer 11

Triceps jerk