Innervation Flashcards
accessory
C3, C4
trapezius
what does the dorsal scapular nerve innervate
C4, C5
Rhomboid major
rhomboid minor
levator scapulae
Axillary nerve
-nerve roots, muscles and cutaneous
C5, C6
Deltoid
teres minor
cutaneous distribution: superior lateral nerve of the arm
suprascapular
C5, C6
supraspinatus
infraspinatus
Nerve to subclavian
C5, C6
subclavian muscle
Long thoracic neve
C5,C7
serrates anterior
Superior subscapular
C5-C7
subscapular
Inferior subscapular
subscapular C5-C7
teres major C6,C7
Thoracodorsal
C6-C8
latissimus dorsi
Lateral pectoral
C6-T1 (C6,C7)
pectoralis major
Medial pectoral
C6,T1 (C8-T1)
pectoralis major
pectoralis minor
Musculocutaneous (nerve roots, muscles, and cutaneous)
biceps brachii C5-C6
brachialis C5,C6
coracobrachialis C5-C7
cutaneous nerve distribution:Lateral nerve of forearm
Radial nerve
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
dermatomes of C5-T1
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
Myotomes for C5-T1
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
What happens to the Radial nerve forearm once it enters the forearm
-enters forearm anterior to lateral epicondyle of the humerus
-bifurcates:
1. superficial branch
2. deep branch
superficial branch of the radius in the forearm
sensory
-travels deep to the brachioradialis and innervates the skin of the hand
how does the Deep branch of the radius travel in the forearm and what does it innervate?
motor
-travel between heads of supinator
-emerges as posterior interossous
-innervates ECRB C7,C8 and supinator C6,C7
Posterior interossesous nerve
emerges below supinator
innervates: C7,C8
-APL
-EPB
-EPL
-extensor indicis
-extensor digitorum
-extensor digiti minimi
-ECU
radial muscle innervation in forearm
brachioradialis, ECRL, anconeous
what are the posterior compartment nerves and what are the anterior compartment nerves of the forearm
-posterior: radial/Posterior interossesous nerve
anterior: median and ulnar
Median nerve: forearm
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
ulnar nerve: forearm
innervates:
-flexor carpi ulnaris C7-T1
-medial 1/ 2 of flexor digitorum profundus C8,T1
passes between heads of flexor capri ulnaris
Ulnar nerve hand innervation
-dorsal interossei C8,T1
-palmar interossei C8,T1
-hypothenar (deep branch)
-medial/3rd and 4th lumbricals (deep branch)
-adductor pollicis C8,T1
Median nerve hand innervation
-Thenar muscles recurrent branch C8,T1
-laterally/1st and 2nd lumbricals
Deep back innervation
dorsal rami
Subocciptial nerve
sub occipital muscles
dorsal rami of C1
What nerves enter the gluteal region through greater sciatic foramen
-superior gluteal nerve
-inferior gluteal nerve
-sciatic nerve
-posterior cutaneous nerve of thigh
-nerve to quadrates femoris
-nerve to obturator internus
Superior Gluteal nerve
-Gluteus Minimus L4-S1
-Gluteus Medius L4-S1
-Tensor Fascia Latte L4-S1
Inferior Gluteal Nerve
Gluteus maximus L5-S2
Nerve to obturator internus
Obturator internus
gemellus superior
L5-S2
Nerve to quadratus femorus
Gemellus Inferior, quadratus femoris
L4-S1
Tibial division of sciatic nerve
Semitendinosus
semimembraanosus
biceps femoris long head
L5-S2
Common peroneal nerve
Short head of biceps femoris
L5-S2
Cranial nerves
- Olfactory
- optic
- oculomotor
- trochlear
- trigeminal
- abducens
- facial
- vestibulocochlear
- glossalpharyngeal
10 vagus
11 accessory
12 hypoglossal
