Anatomical Spaces & Tunnels of the Upper Limb Flashcards
Axilla Borders
Apex - 1st rib, scapula, clavicle
Ant - Pectoralis major & minor
Post - Subscapularis, teres major and latissimus dorsi
Lat - Bicipital groove (Intertubecular sulcus)
Med - Serratus anterior & thoracic wall
Axilla Contents
- Axillary artery
- Axillary vein
- Brachial plexus
- Biceps brachii
- Coracobrachialis
- Axillary lymph nodes
Quadrangular Space Borders
Sup - Teres minor
Inf - Teres major
Lat - Surgical neck (humerus)
Med - Long head triceps
Quadrangular Space Contents
- Axillary nerve
- Posterior humeral circumflex artery
Triangular Interval Borders
Sup - Teres major
Lat - Humerus
Med - Long head triceps
Triangular Interval Contents
- Radial nerve
- Profunda brachial artery
Triangular Space Borders
Sup - Teres minor
Inf - Teres major
Lat - Long head triceps
Triangular Space Contents
- Scapula circumflex artery
Cubital Fossa Borders
Roof - Brachial fascia, bicipital aponeurosis, superficial fascia and skin
Floor - Brachialis & supinator
Lat - Brachioradialis
Med - Pronator teres
Cubital Fossa Contents
- Median nerve
- Brachial artery
- Brachial veins
- Biceps brachii tendon
- Radial nerve
Snuffbox Borders
Roof - Skin Floor - Scaphoid and trapezium Prox - Radial styloid process Ant/Lat - APL and EPB Post/Med - EPL
Snuffbox Contents
- Radial artery
- Cephalic vein
- Branch of radial nerve
Carpal Tunnel Borders
Carpal Arch - Lat - Scaphoid/Trapezium - Med - Hook of Hamate/Pisiform Roof - Flexor retinaculum Floor - Carpal bones
Carpal Tunnel Contents
- FPL tendon
- FDS tendons
- FDP tendons
- Median nerve
Tunnel of Guyon Borders
Roof - Superficial palmar collateral ligament
Floor - Flexor retinaculum and hypothenar muscles
Lat - Hook of Hamate
Med - Pisiform
