Provides innervation to deltoid and teres minor
Axillary nerve
Anterior compartment muscles not innervated by median nerve
Flexor carpi ulnaris, ulnar half of flexor digitorum profundus
Posterior muscles of the arm
ANCONEUS, Triceps
Innervates posterior compartment of arm
Radial nerve
Rhomboids
Dorsal scapular
Serratus anterior
Long thoracic
Supraspinatus and infraspinatus
Suprascapular
Pectoralis major
Lateral pectoral
Pectoralis major and minor
Medial pectoral
Subscapularis
Upper subscapular
Latissimus dorsi
Middle subscapular/ thoracodorsal
Subscapularis and teres major
Lower subscapular nerve
Skin of medial arm
Medial branch of cutaneous nerve
Skin of medial forearm
Medial antebrachial cutaneous nerve
2 prominent bursae in the glenohumeral joint
Subacromial, subscapular
Seperates tendon of supraspinatous from deltoid muscle
Subacrimial
Seperates scapular fossa from the tendon of subscapularis muscle
Subscapular fossa
Rotator cuff muscles
Supraspinatus, infraspinatus, teres minor, subscapularis
Teres minor
Axillary nerve
Most common type of shoulder dislocation
Anterior or inferior
Acromioclavicular joint is stabilized by what ligaments
Coracoacromial, coracoclavicular, acromioclavicular
Forms the wrist joint
Distal end of radius with SCAPHOID and LUNATE
Forms the carpal tunnel
Flexor retinaculum
Forms the flexor retinaculun
Volar and transverse carpal ligament
Structures that pass through the carpal tunnel
Flexor pollicis longus, flexor digitorum superficialis and profundis, median nerve
Tingling sensation produced by tapping the palmaris longus tendon
Tinel test
What are the contents of the axilla
Vein artery nerve(axillary vein and artery and brachial plexus)
Axillary structures are covered by
Axillary fascia
Shoulder joint is weakest
Inferiorly
What are the intrinsic muscles of the shoulder
SITS + DTM
Most commonly affected tendon in the shoulder
Tendon of supraspinatis
What are the contents of the quadrangular space
Axillary nerve(circumflex nerve); posterior circumflex humeral vessels
Contents of triangular space
Circumflex scapular vessels
Main supinator of forearm
Biceps Brachii
Main flexor of forearm
Brachialis
Anterior muscles of the arm are innervates by
Musculocutaneous nerve
Adducts/flexes arm
Coracobrachialis
Posterior arm is innervates byw
Radial nerve
Main extensor of arm
Triceps
Pronator teres, palmaris longus, pronator quadratus are muscles of
Forearm(flexors)
Supinator, aconeus and anductor pollicis longus are muscles of
Forearm- exntensors
Adductor policis is innervates by
Extensor digitorum is innervated by radial nerve
Flexes MCP joints
Lumbricales
Helps lumbricals extend IP joints and flex MCP joints
Interossei
Hypothenar muscles are innervated by
Ulnar nerve (digiti minimi)
The brachial plexus consists of which roots
C5-T1
largest branch of axillary artery
Subscapular
Artery that supplies subscapularis, teres major and latissimus dorsi
Subscapular artery
Supplies anterior serratus muscle
Thoracodorsal artery
Thoracosorsal artery is a branch of which artery
Subscapular
1st bone to begin ossification
Clavicle
Convex part of clavicle
Medial 2/3
Weakest point of clavicle
Junction
May cause brachial plexus injury
Clavicular fracture
Pain and tenderness over the anatomical snuffbox
Scaphoid fracture
Most commonly dislocated carpal bone
Lunate
Dislocation of this bone may cause CTS
Lunate
Fracture of the base of the 1st metacarpal bone
Bennett’s fracture
Fracture of the necks of the second and third metacarpal
Boxer’s fracture
Wha drains the right side of the head and neck, thorax, upper limb
Right lymphatic duct