Nerves of Upper Limb Flashcards
which nerve pierces the coracobrachialis?
musculocutaneous
which nerves contribute to Ulnar Nerve?
(C7), C8, T1
What is pre-fixed/post-fixed brachial plexus?
pre-fixed: C4-C8
post-fixed: C6-T2
Are the divisions of brachial plexus infra or supreclavicular?
infraclavicular
Musculocutaneous nerve which nerve roots?
C5,6,7
Musculocutaneous nerve innervated?
biceps
brachialis
coracobrachialis
what happens to Musculocutaneous nerve at elbow?
becomes superficial
turns into lateral cutaneous nerve of forearm
ulnar travels where near elbow? and through what into forearm
behind the medial epicondyle, through the 2 heads of flexor carpi ulnaris
ulnar nerve important for what muscles?
everything in the hand except what the median nerve supplies
ulnar nerve supplies what in forearm?
FCU
FDP
ulnar nerve is where in wrist?
superficial near pisiform bone
what nerve roots make up median nerve?
C5,6,7,8 T1
course of median nerve in arm?
lateral at first, then crosses brachial artery medially to elbow
what is the order of structures in cubital fossa?
BAN
Biceps tendon
Artery (brachial)
Nerve (median)
median nerve supplies 4/5 forearm flexors and 3 deep. They are?
pronator teres
Palmaris longus
flexor carpi radialis
flexor digitorum superficialis
lateral FCP
Pronator Quadratus
median nerve passes through what in forearm?
fibrous arch of FDS
what hand muscles by median nerve?
5 muscles:
3 thenar: APB, FPB, OP
lateral 2 lumbricals
What nerves are around Teres major?
Axillary nerve above
Radial nerve below
What runs between teres major and minor?
axillary nerve
what is above/behind the axillary nerve? so what?
G-H joint. dislocation injury
axillary nerve supplies what?
deltoid (C5,6)
radial nerve course in arm?
lateral diagonally across shaft of humerus, tucks into cover of brachioradialis
radial nerve splits into what at elbow?
superficial (cutaneous only)
deep (through supinator, all motor)
Deep branch of radial nerve AKA?
posterior interosseus nerve
