Anatomy Flashcards
Innervated by the Lateral pectoral nerve (C5,6,7) & medial pectoral nerve (C8,T1) (ventral ramus)
Pectoralis Major
Pectoralis Minor (innervation and arterial supply)
Innervated by the medial pectoral nerve (C8,T1)
????? artery
Serratus Anterior (nerve and artery)
external surfaces of lateral parts of 1st through 8th ribs
Long thoracic nerve
Long thoracic artery
Trapezius (innervation and arterial supply)
**spinal accessory nerve (CN XI) **
transverse cervical artery/posteriro intercostal arteries
elevates, retracts and rotates scapula, lower firbers depress scapula
Deltoid Muscle
anterior and posterior branches of axillary nerve
Posterior circumflex humoral artery, deltoid branch of thoracoacromial artery
Rhomboid major muscle
retracts and rotates scapula to depress the glenoid cavity
blood supply: dorsal scapular artery
Dorsal scapular nerve
Supraspinatus muscle
initiates arm abduction, acts with rotator cuff muscles
suprascapular artery
suprascapular nerve (C5,C6)
Latissimus dorsi muscle
Extends, adducts, and medially rotates humerus.
Thoracodorsal nerve (C6-C8)
Thoracodorsal artery
Teres minor muscle
Lateral rotation of arm, adduction
Posterior branch of axillary nerve (C5, C6)
Circumflex scapular artery
Teres major muscle
Adducts and medically rotates arm
Inferior subscapular nerve (C5, C6)
Circumflex scapular artery
Infraspinatus Muscle
Lateral rotation of arm (with teres minor)
Suprascapular nerve (C5, C6)
**Suprascapular artery **
Subscapularis muscle
Medially roatates arm and adducts it, helps hold humeral head in glenoid cavity
Superior and inferior subscapular nerves (C5, C6)
Subscapular artery
Coracobrachialis muscle
flexes and adducts arm,
musculocutaneous nerve (C5, C6, C7),
muscular branches of brachial artery
Biceps brachii muscle
Supinates forearm, Flexes forearm when supinated,
musculocutaneous nerve (C5, C6),
muscular braches of brachial artery
Space that transmits axillary nerve and posterior circumflex humeral artery
Quadrangular space. (formed by teres minor, teres major, long head of the tricepts, and the humerus)
Brachialis muscle
flexes forearm,
musculocutaneous nerve (C5, C6),
radial recurrent and muscular branches of brachial artery
Brachioradialis muscle
flexes forearm,
radial nerve (C5, C6),
radial recurrent artery,
Pronator teres muscle
pronates forearm,
median nerve (C6, C7),
anterior ulnar recurrent artery.
Flexor carpi radialis muscle
flexes and abducts hand at wrist, median nerve, radial artery
Tricepts brachii muscle
Extends forearm, long head stabilizes head of abducted humerus,
radial nerve (C6, C7, C8),
Profunda brachii (deep brachial) artery
flexor carpi radialis muscle
fleses and abducts hand at wrist
median nerve
radial artery
Palmeris longus muscle
Flexes hand and tenses palmar aponeurosis
median nerve
posterior ulnar recurrent artery
Flexor carpi ulnaris muscle
flex and adducts hand at wrist
ulnar nerve
posterior ulnar recurrent artery
Flexor digitorum superficialis muscle
Flexes middle and proximal phalanges of medial four digits; also flexes hand at wrist
median nerve
ulnar and radial arteries
Flexor pollicus longus muscle
Flexes phalanges of thumb
anterior interosseous branch of median nerve
anterior interosseous artery
Supinator muscle
supinates forearm
Deep branch of radial nerve
radial recurrent and posterior interosseous arteries
Flexor digitorum profundus muscle
Flexes distal phalanges of medial four digits, assts in flexion of hand at wrist.
Medial innervation: ulnar nerve, lateral part: medial nerve
anterior interosseous artery and muscular branches of ulnar artery
Pronator quadratus muscle
pronates forearm
anterior interosseous branch of median nerve
anterior interosseous artery
Adductor pollicis muscle
Adducts thumb
Deep branch of ulnar nerve
Deep palmar arch artery
1st and 2nd lumbrical muscles
Extends digits at IP joints and flexes MCP joints
Median nerve
Superficial and deep palmar arches
3rd and 4th lumbrical muscles
Extends digits at IP joints and felxes MCP joints
Deep branch of ulnar nerve
Superficial and deep palmar arches
extensor carpi radialis longus muscle
extends and abducts hand at wrist
Radial nerve
Radial artery and radial recurrent artery
Supinator muscle
supinates forearm
Deep brach of radial nerve (C6-C7)
radial recurrent and posterior interosseous arteries
Extensor carpi radialis brevis muscle
extends and abducts hand at wrist
Deep branch of radial nerve
radial artery and radial recurrent artery
extensor carpi ulnaris
extends and abducts hand at wrist
Posterior interosseous nerve
Posterior interosseous artery
Extensor digiti minimi muscle
Extends fifth digit
posterior interosseous nerve
posterior interosseous artery
Extensor indicis muscle
Extends second digit
Posterior interosseous nerve
posterior interosseous artery
Extensor pollicis longus muscle
Extends distal phalanx of thumb
Posterior interosseous nerve
Posterior interosseous artery
Abductor pollicis longus muscle
Abducts and extends thumb
Posterior interosseous nerve
Posterior interosseous artery
Extensor pollicis brevis muscle
Extends proximal phalanx of thumb
Posterior interosseous nerve
Posterior interosseous artery
Posterior interosseous nerve
continuation of deep brach of radial nerve distal to lower border of supinator muscle
