Peripheral nervous system

Question 1

What dermatome is the thumb?

Answer 1

C6. Make a 6 by touching left thumb to proximal interphalangeal joint of left index finger

Question 2

What dermatome is the middle finger?

Answer 2

C7

Question 3

What dermatome is the pinky finger?

Answer 3

C8

Question 4

What dermatome is the anus?

Answer 4

S5 is the doodie hive

Question 5

What dermatome is the plain of the nipples?

Answer 5

T4

Question 6

What dermatome is the umbilicus?

Answer 6

T10 (BellybuT-TEN)

Question 7

What dermatome is the great toe?

Answer 7

L5 is the Largest of the five

Question 8

What dermatome is the fifth toe?

Answer 8

S1 is the Smallest one

Question 9

What dermatome overlies the inguinal ligament?

Answer 9

L1 (L for ligament, 1 for 1nguinal)

Question 10

What dermatome is the knee?

Answer 10

L4 (L4 hits the floor when standing on your knees)

Question 11

Which myotome(s) for hip flexion?

Answer 11

L2,3

Question 12

Which myotome(s) for hip extensions?

Answer 12

L4,5,S1

Question 13

Which myotome(s) for hip abduction?

Answer 13

L4,5,S1

Question 14

Which myotome(s) for hip adduction?

Answer 14

L2,3,4

Question 15

Which myotome(s) for knee extension?

Answer 15

L2,3,4

Question 16

Which myotome(s) for knee flexion?

Answer 16

L5,S1

Question 17

Which myotome(s) for ankle dorsiflexion?

Answer 17

L4,5

Question 18

Which myotome(s) for ankle plantarflexion?

Answer 18

S1,2

Question 19

Which myotome(s) for inversion of the foot?

Answer 19

L4,5

Question 20

Which myotome(s) for eversion of the foot?

Answer 20

L5,S1

Question 21

Which myotome(s) for great toe extension?

Answer 21

L4,5,S1

Question 22

Which myotome(s) for shoulder abduction?

Answer 22

C4,5,6

Question 23

Which myotome(s) for elbow flexion?

Answer 23

C5,6

Question 24

Which myotome(s) for elbow extension?

Answer 24

C7,8

Question 25

Which myotome(s) for wrist extension?

Answer 25

C6,7

Question 26

Which myotome(s) for wrist flexion?

Answer 26

C6,7,8

Question 27

Which myotome(s) for finger extension?

Answer 27

C7,8

Question 28

Which myotome(s) for finger flexion?

Answer 28

C7,8

Question 29

Which myotome(s) for finger abduction?

Answer 29

C8,T1

Question 30

Which myotome(s) for finger adduction?

Answer 30

T1

Question 31

Which myotome(s) for thumb abduction?

Answer 31

T1

Question 32

Which myotome(s) are tested with the biceps jerk?

Answer 32

C5,6

Question 33

Which myotome(s) are tested with the triceps jerk?

Answer 33

C7,8

Question 34

Which myotome(s) are tested with the brachioradialis jerk?

Answer 34

C5,6

Question 35

Which myotome(s) are tested with the finger jerk?

Answer 35

C8

Question 36

Which myotome(s) are tested with the knee jerk?

Answer 36

L2,3,4

Question 37

Which myotome(s) are tested with the ankle jerk?

Answer 37

S1,2

Question 38

Which nerve root(s) are tested with the plantar reflex?

Answer 38

L5,S1,2

Question 39

Explain the 3 levels of structure in a peripheral nerve

Answer 39

1 Single axon ( often wrapped in myelin) wrapped in endoneurium.

2 Bundle of axons form a fascicle, surrounded by perineurium.

3 Bundle of fascicles form a peripheral nerve. Nerve surrounded by epineurium.