Upper Extremity, Topnotch Flashcards
Axilla, boundaries: Posterior
Scapular 1) Subscapularis 2) Latissimus dorsi 3) Teres major
Axilla, boundaries: Medial
Costal 1) 2nd-6th rib and intercostal muscles 2) Serratus anterior
Axilla, boundaries: Lateral
Humeral 1) Humerus 2) Long and short heads of biceps brachia 3) Coracobrachialis
Axilla, boundaries: Apex
3 bones 1) Anterior: Clavicle 2) Posterior: Scapula 3) Medial: 1st rib
Axilla, boundaries: Base
Skin, subcutaneous fascia, and axillary fascia
The axillary fascia that covers the axillary sheath is a continuation of
Lateral prolongation of pre vertebral fascia
Axillary fascia extends up to
Elbow
Dislocation: Sudden violence applied to humerus with joint fully abducted tilts the humeral head downward into the inferior weak part
Anterior inferior dislocation
Dislocation: Rare dislocation of shoulder joint
Posterior
Shoulder joint: Most commonly affected tendon in inflammation
Supraspinatus tendon
Symptom of inflammation of supraspinatus tendon
Pain anterior and superior to shoulder on abduction
Nerve supply: Supraspinatus
Suprascapular
Nerve supply: Infraspinatus
Suprascapular
Nerve supply: Teres minor
Axillary
Nerve supply: Teres major
Lower subscapular
Nerve supply: Deltoid
Axillary
Actions at shoulder joint: Supraspinatus
Abductor
Actions at shoulder joint: Infraspinatus
Lateral rotator
Actions at shoulder joint: Teres minor
Lateral rotator
Actions at shoulder joint: Subscapularis
Medial rotator
Actions at shoulder joint: Deltoid
Abductor
Actions at shoulder joint: Teres major
Medial rotator
Triangular space, boundaries: Superior
Teres minor
Triangular space, boundaries: Inferior
Teres major
Triangular space, boundaries: Lateral
Long head of biceps brachii
Triangular space, boundaries: Contents
Circumflex scapular vessels
Forearm: Main flexor
Brachialis
Forearm: Main supinator
Biceps brachii
Forearm: Main extensor
Triceps brachii
Innervation of flexor muscles in forearm
Median nerve
Flexor muscles in forearm: Superficial group (4)
1) Pronator teres 2) Palmaris longus 3) Flexor carpi radialis 4) Flexor carpi ulnaris
Flexor muscles in forearm: Intermediate group
Flexor digitorum superficialis
Flexor muscles in forearm: Deep group (3)
1) Flexor digitorum profundus 2) Flexor palmaris longus 3) Pronator quadratus
2 flexor muscles in forearm not innervated by median nerve but by the ulnar nerve
1) Flexor carpi ulnaris 2) Flexor digitorum profundus
Foreram: Origin of common flexor tendon
Medial epicondyle of humerus
Common flexor tendon is common origin of which muscles
Superficial and intermediate group of forearm flexors
Nerve supply of extensors of forearm
Radial nerve
Extensors of forearm: Deep group
SEEEA 1) Supinator 2) EPB 3) EPL 4) EI 5) Abpolo
Foreram: Origin of common extensor tendon
Lateral epicondyle of humerus
Inflammation of common flexor tendon
golFer’s elbow