Innervation

Question 1

accessory

Answer 1

C3, C4
trapezius

Question 2

what does the dorsal scapular nerve innervate

Answer 2

C4, C5
Rhomboid major
rhomboid minor
levator scapulae

Question 3

Axillary nerve
-nerve roots, muscles and cutaneous

Answer 3

C5, C6
Deltoid
teres minor
cutaneous distribution: superior lateral nerve of the arm

Question 4

suprascapular

Answer 4

C5, C6
supraspinatus
infraspinatus

Question 5

Nerve to subclavian

Answer 5

C5, C6
subclavian muscle

Question 6

Long thoracic neve

Answer 6

C5,C7
serrates anterior

Question 7

Superior subscapular

Answer 7

C5-C7
subscapular

Question 8

Inferior subscapular

Answer 8

subscapular C5-C7
teres major C6,C7

Question 9

Thoracodorsal

Answer 9

C6-C8
latissimus dorsi

Question 10

Lateral pectoral

Answer 10

C6-T1 (C6,C7)
pectoralis major

Question 11

Medial pectoral

Answer 11

C6,T1 (C8-T1)
pectoralis major
pectoralis minor

Question 12

Musculocutaneous (nerve roots, muscles, and cutaneous)

Answer 12

biceps brachii C5-C6
brachialis C5,C6
coracobrachialis C5-C7
cutaneous nerve distribution:Lateral nerve of forearm

Question 13

Radial nerve

Answer 13

triceps brachii C6-C8
brachioradialis C5,C6
anconeous C6-C8
ECRL C7,C8
cutaneous nerve distribution: inferior lateral nerve of arm, posterior nerve of arm and posterior nerve of forearm
-superficial branch of thumb-lateral side of 3rd phalange

Question 14

dermatomes of C5-T1

Answer 14

C5 = upper lateral region of the arm
C6 = palmar pad of them
C7 = pad of index finer
C8 = pad of little finger
T1 = skin on the medial aspect of the elbow

Question 15

Myotomes for C5-T1

Answer 15

C5= abduction of the glenohumeral join t
C6 = flexion of the forearm at the elbow join t
C7 = extension of the forearm at the elbow joint
C8 = flexion of the fingers
T1 = abduction/adduction of index, middle, and ring figer

Question 16

What happens to the Radial nerve forearm once it enters the forearm

Answer 16

-enters forearm anterior to lateral epicondyle of the humerus
-bifurcates:
1. superficial branch
2. deep branch

Question 17

superficial branch of the radius in the forearm

Answer 17

sensory
-travels deep to the brachioradialis and innervates the skin of the hand

Question 18

how does the Deep branch of the radius travel in the forearm and what does it innervate?

Answer 18

motor
-travel between heads of supinator
-emerges as posterior interossous
-innervates ECRB C7,C8 and supinator C6,C7

Question 19

Posterior interossesous nerve

Answer 19

emerges below supinator
innervates: C7,C8
-APL
-EPB
-EPL
-extensor indicis
-extensor digitorum
-extensor digiti minimi
-ECU

Question 20

radial muscle innervation in forearm

Answer 20

brachioradialis, ECRL, anconeous

Question 21

what are the posterior compartment nerves and what are the anterior compartment nerves of the forearm

Answer 21

-posterior: radial/Posterior interossesous nerve
anterior: median and ulnar

Question 22

Median nerve: forearm

Answer 22

Pronator teres C6,C7
FCR C6,C7
Palmaris longus C7,C8
Flexor digitorum superficialis C8,T1
Lateral ½ of flexor digitorum profundus C8,T1
Flexor pollicis longus C7,C8
Pronator quadratus C7,C8

Question 23

ulnar nerve: forearm

Answer 23

innervates:
-flexor carpi ulnaris C7-T1
-medial 1/ 2 of flexor digitorum profundus C8,T1
passes between heads of flexor capri ulnaris

Question 24

Ulnar nerve hand innervation

Answer 24

-dorsal interossei C8,T1
-palmar interossei C8,T1
-hypothenar (deep branch)
-medial/3rd and 4th lumbricals (deep branch)
-adductor pollicis C8,T1

Question 25

Median nerve hand innervation

Answer 25

-Thenar muscles recurrent branch C8,T1 -laterally/1st and 2nd lumbricals

Question 26

Deep back innervation

Answer 26

dorsal rami

Question 27

Subocciptial nerve

Answer 27

sub occipital muscles dorsal rami of C1

Question 28

What nerves enter the gluteal region through greater sciatic foramen

Answer 28

-superior gluteal nerve -inferior gluteal nerve -sciatic nerve -posterior cutaneous nerve of thigh -nerve to quadrates femoris -nerve to obturator internus

Question 29

Superior Gluteal nerve

Answer 29

-Gluteus Minimus L4-S1 -Gluteus Medius L4-S1 -Tensor Fascia Latte L4-S1

Question 30

Inferior Gluteal Nerve

Answer 30

Gluteus maximus L5-S2

Question 31

Nerve to obturator internus

Answer 31

Obturator internus gemellus superior L5-S2

Question 32

Nerve to quadratus femorus

Answer 32

Gemellus Inferior, quadratus femoris L4-S1

Question 33

Tibial division of sciatic nerve

Answer 33

Semitendinosus semimembraanosus biceps femoris long head L5-S2

Question 34

Common peroneal nerve

Answer 34

Short head of biceps femoris L5-S2

Question 35

Cranial nerves

Answer 35

1. Olfactory 2. optic 3. oculomotor 4. trochlear 5. trigeminal 6. abducens 7. facial 8. vestibulocochlear 9. glossalpharyngeal 10 vagus 11 accessory 12 hypoglossal