Neuromuscular: Innervation

Question 0

Long Thoracic Nerve

Answer 0

C5,6,7 roots

Serratus anterior

Question 1

Dorsal Scapular Nerve

Answer 1

C5 Root
Rhomboids
Levator Scapulae

Question 2

Nerve To Subclavius

Answer 2

Superior Trunk (C5,6)
Subclavius

Question 3

Suprascapular Nerve

Answer 3

Superior Trunk (C5,6)
Infraspinatus
Supraspinatus

Question 4

Lateral Pectoral Nerve

Answer 4

Lateral Cord (C5,6,7)
Pectoralis Major (Clavicular Head)

Question 5

Musculocutaneous Nerve

Answer 5

Lateral Cord (C5,6,7)
Coracobrachialis
Biceps
Brachialis

Question 6

Median Nerve

Answer 6

Roots from Lateral and Medial Cords (C5,6,7,8,T1)
Forearm flexors except FCU
Five muscles in hand

Question 7

Medial Pectoral Nerve

Answer 7

Medial Cord (C8,T1)
Pectoralis Major
Pectoralis Minor

Question 8

Ulnar Nerve

Answer 8

Lateral Cord (C7,8,T1)
FCU
FDP
Most small hand muscles

Question 9

Upper Subscapular Nerve

Answer 9

Posterior Cord (C5,6)
Subscapularis

Question 10

Thoracodorsal Nerve

Answer 10

Posterior Cord (C6,7,8)
Latissimus Dorsi

Question 11

Lower Subscapular Nerve

Answer 11

Posterior Cord (C5,6)
Subscapularis
Teres Major

Question 12

Axillary Nerve

Answer 12

Posterior Cord (C5,6)
Deltoid
Teres Minor

Question 13

Radial Nerve

Answer 13

Posterior Cord (C5,6,7,8,T1)
Triceps
Anconeus
Supinator
Brachioradialis

Question 14

Lumbar Plexus

Answer 14

Psoas Major (Accessory Obturator and Femoral Nerves, L2-4)
Psoas Minor (Accessory Obturator and Femoral Nerves, L2-4)
Quadratus Lumborum

Question 15

Sacral Plexus

Answer 15

Piriformis (N. to Piriformis, S2)
Superior Gemelli (N. to Obturator Internus, L5-S2)
Obturator Internus (N. to Obturator Internus, L5-S2)
Inferior Gemelli (N. to Quadratus Femoris, L4-S1)
Quadratus Femoris (N. to Quadratus Femoris, L4-S1)

Question 16

Inferior Gluteal Nerve

Answer 16

L5-S2

Gluteus Maximus

Question 17

Superior Gluteal Nerve

Answer 17

L4-S1
Gluteus Medius
Gluteus Minimus
TFL

Question 18

Femoral Nerve

Answer 18

L2-4
Iliacus
Pectineus
Sartorius
Quadriceps

Question 19

Obturator Nerve

Answer 19

L2-4
Adductor Longus
Adductor Brevis
Adductor Magnus
Obturator Externus
Gracilis

Question 20

Tibial Nerve

Answer 20

L4-S3
Popliteus
Plantaris
Gastrocnemius
Soleus
Tibialis Posterior
Flexor Hallucis Longus
Flexor Digitorum Longus

Question 21

Sciatic Nerve - Tibial Division

Answer 21

L4-S3
Biceps Femoris Long Head
Semitendinosus
Semimembranosus

Question 22

Sciatic Nerve - Common Peroneal Division

Answer 22

L4-S2

Biceps Femoris Short Head

Question 23

Deep Peroneal Nerve

Answer 23

From Common Peroneal Nerve (L4-S2)
Tibialis Anterior
EHL
EDL
Peroneus Tertius
EDB

Question 24

Superficial Peroneal Nerve

Answer 24

From Common Peroneal Nerve (L4-S2) Peroneus Longus Peroneus Brevis

Question 25

Medial Plantar Nerve

Answer 25

``` From Tibial Nerve (L4-S3) Abductor Hallucis FDB Lumbrical I (II) FHB ```

Question 26

Lateral Plantar Nerve

Answer 26

``` From Tibial Nerve (L4-S3) Abductor Digiti Minimi Quadratus Plantae Lumbrical (II) III, IV Adductor Hallucis Flexor Digiti Minimi Brevis Dorsal Interossei Plantar Interossei ```

Question 27

Pain: Gate Control Theory

Answer 27

Transmission at SC level controlled by balance between large and small fibers Activity of large can (-) small fiber activity and pain transmission Large Fibers: A alpha, A beta Small Fibers: A delta, C

Question 28

Pain: Descending Analgesic Systems

Answer 28

Presynaptic inhibition | Endogenous opiates throughout CNS can depress transmissions