innervation and blood supply Flashcards
trapezius
innervation: accessory nerve
blood supply: transverse cervical artery and dorsal scapular artery
deltoid
innervation: axillary nerve
blood supply: posterior circumflex humeral artery
latissimus dorsi
innervation: thoracodorsal nerve
blood supply: thoracodorsal artery
levator scap
innervation: dorsal scapular nerve
blood supply: transverse cervical artery
rhomboids
innervation: dorsal scapular nerve
blood supply: dorsal scapular artery
serratus anterior
innervation: long thoracic nerve
blood supply: thoracodorsal artery
supraspinatus
innervation: suprascapular nerve
blood supply: suprascapular artery
infraspinatus
innervation: suprascapular nerve
blood supply: suprascapular artery
teres minor
innervation: axillary nerve
blood supply: subscapular artery, circumflex scapular artery, and thoracodorsal artery
teres major
innervation: lower subscapular nerve
blood supply: posterior circumflex humeral artery and thoracodorsal artery
triceps
innervation: radial nerve
blood supply: deep brachial artery
quadrangular space contents
axillary nerve and posterior circumflex humeral artery
triangular space contents
circumflex scapular artery
triangular interval contents
radial nerve and profundi brachii artery
pec major
innervation: medial and lateral pectoral nerve
blood supply: thoracoacromial artery
pec minor
innervation: medial pectoral nerve
blood supply: thoracoacromial artery
subclavius
innervation: nerve to subclavius
blood supply: thoracoacromial artery
subscapularis
innervation: upper and lower subscapular nerve
blood supply: subscapular artery
biceps
innervation: musculocutaneous nerve
blood supply: brachial artery
coracobrachialis
innervation: musculocutaneous nerve
blood supply: brachial artery
brachialis
innervation: musculocutaneous and radial nerve
blood supply: brachial artery
axillary artery and vein branches
- thoracoacromial a/v
- lateral thoracic a/v
- subscapular a/v (divides into circumflex scapular a/v and thoracodorsal a/v)
- anterior circumflex humeral a/v
- posterior circumflex humeral a/v
brachioradialis
innervation: radial nerve
blood supply: radial artery
anconeus
innervation: radial nerve
blood supply: recurrent interosseous branch of posterior interosseous artery
pronator teres
innervation: median nerve
blood supply: ulnar artery
flexor carpi radialis
innervation: median nerve
blood supply: anterior or posterior recurrent ulnar artery
palmaris longus
innervation: median nerve
blood supply: anterior ulnar recurrent artery
flexor carpi ulnaris
innervation: ulnar nerve
blood supply: posterior ulnar recurrent artery
flexor digitorum superficialis
innervation: median nerve
blood supply: ulnar artery
flexor pollicis longus
innervation: anterior interosseous nerve from median nerve
blood supply: anterior interosseous artery from ulnar artery
flexor digitorum profundus
innervation: anterior interosseous nerve from median nerve for digits 2-3 and ulnar nerve for digits 4-5
blood supply: anterior interosseous artery from ulnar artery
pronator quadratus
innervation: anterior interosseous nerve from median nerve
blood supply: anterior interosseous artery from ulnar artery
extensor carpi radialis longus
innervation: radial nerve
blood supply: radial artery
extensor carpi radialis brevis
innervation: deep radial nerve
blood supply: radial artery
extensor digitorum
innervation: posterior interosseous nerve from radial nerve
blood supply: posterior interosseous artery and radial recurrent artery
extensor digiti minim
innervation: radial nerve
blood supply: radial recurrent artery and anterior and posterior interosseous arteries
extensor carpi ulnaris
innervation: posterior interosseous nerve from radial nerve
blood supply: ulnar artery
supinator
innervation: deep radial nerve
blood supply: radial recurrent artery and posterior and interosseous recurrent arteries
abductor pollicis longus
innervation: posterior interosseous nerve from radial nerve
blood supply: interosseous branch of ulnar artery
extensor pollicis brevis
innervation: posterior interosseous nerve from radial nerve
blood supply: posterior interosseous artery from ulnar artery
extensor pollicis longus
innervation: posterior interosseous nerve from radial nerve
blood supply: anterior interosseous artery from ulnar artery
extensor indicis
innervation: posterior interosseous nerve from radial nerve
blood supply: posterior interosseous artery from ulnar artery
median nerve branches
anterior interosseous nerve (innervation to deep muscles in anterior forearm)
ulnar nerve branches
dorsal cutaneous branch of ulnar nerve
- sensory
- innervates skin of medial one and a half fingers and associated dorsal hand area
radial nerve branches
superficial branch of radial nerve
- sensory
- supplies skin on dorsum of hand and provicds articular branches to joints in hand
deep branch of radial nerve (posterior interosseous nerve)
ulnar artery and vein branches
common interosseous a/v (gives off anterior interosseous a/v and posterior interosseous a/v)
palmaris brevis
innervation: ulnar nerve
blood supply: superficial palmar arch
thenar muscles
- abductor pollicis brevis
- flexor pollicis brevis
- opponens pollicis
abductor pollicis brevis
innervation: recurrent median nerve
blood supply: superficial palmar branch of radial artery
flexor pollicis brevis
innervation: recurrent median nerve
blood supply: radial artery and superficial palmar artery
opponens pollicis
innervation: recurrent median nerve
blood supply: superficial palmar branch of radial artery
hypothenar muscles
- abductor digiti minimi
- flexor digiti minimi brevis
- opponens digiti minimi
abductor digiti minimi
innervation: ulnar nerve
blood supply: palmar branch of ulnar artery, palmar digital artery, and superficial palmar arch
flexor digiti minimi brevis
innervation: ulnar nerve
blood supply: deep palmar branch of ulnar artery
opponens digiti minimi
innervation: ulnar nerve
blood supply: deep palmar branch of ulnar artery and deep palmar arch
lumbricals
innervation: digits 2-3 median nerve and 4-5 ulnar nerve
blood supply: dorsal carpal arch
adductor pollicis
innervation: ulnar nerve
blood supply: deep palmar arterial arch
palmar interosseous
innervation: ulnar nerve
dorsal interosseous
innervation: ulnar nerve
radial artery and vein branches in hand
deep palmar arterial arch > palmar metacarpal arteries
ulnar artery and vein branches in hand
superficial palmar arterial arch > common palmar digital a/v > proper palmar digital a/v