Nerves Flashcards
Ulnar Nerve
C8-T1
motor - intrinsic hand muscles + flexor carpi ulnaris + medial flexor digitorum profundus
sensory - anterior + psoterior medial 1.5 fingers
What spinal level does the axillary nerve originate?
C5-6
What muscles does the axillary nerve innervate?
Teres minor
Deltoid
Where is the sensory area of the axillary nerve?
Regimental badge area - over deltoid
What spinal levels does the musculocutaneous nerve originate at?
C5-7
What muscles does the musculocutaneous nerve innervate?
Anterior compartment of arm
- biceps brachii
- brachialis
- coracobrachialis
What is the sensory area of the musculocutaneous nerve?
Lateral forearm
- via lateral cutaneous nerve
What spinal levels does the median nerve originate at?
C5-T1
What muscles does the median nerve innervate?
Forearm
- pronator teres
- flexor carpi radialis
- palmaris longus
- flexor digitorum superficialis
- flexor pollucis longus
- flexor digitorum profundus (radial half)
Hand
- lateral 2 lumbricals
- opponens pollicis
- abductor pollucis brevis
- flexor pollicis brevis
What is the sensory area of the median nerve?
Thumb + lateral 2.5 digits
- palmar surface
- distal dorsal surface
What spinal levels does the radial nerve originate from?
C5-T1
Which muscles does the radian nerve innervate?
Posterior arm
- triceps brachii
Posterior forearm
- brachioradialis
- extensor carpi radialis
- extensor digitorum
- extensor digiti minimi
- extensor carpi ulnaris
- anconeus
Hand
- abductor pollicis longus
- extensor pollicus longus
- extensor pollucis brevis
What is the sensory area of the radial nerve?
Posterior foaream
Lateral dorsum of hand
Dorsal surface of lateral 3.5 digits
What spinal levels does the ulnar nerve originate from?
C8-T1
What muscles does the ulnar nerve innervate?
Medial 2 lumbricals Adductor pollicis Interossei Hypothenar muscles Flexor carpi ulnaris
