Anatomic Spaces Flashcards
What are the boundaries of the thoracic outlet?
T1 vertebra, 1st ribs, and manubrium
What is the roof of the thoracic outlet covered by?
Sibsons fascia/Suprapleural membrane
What is the suprapleural membrane attached to?
TVP of C7 and inner aspect of 1st rib
What are the contents of the thoracic outlet?
Trachea, esophagus, thoracic duct, brachiocephalic trunk, left common carotic and left subclavian arteries, right and left brachiocephalic veins, left and right vagus nerves, phrenic nerves, right and left sympathetic trunks, T1 of brachial plexus, sternohyoid, sternothyroid, longus colli
What are the boundaries of the axilla?
Pec major and minor (anterior); Subscapularis, teres major, and latissimus dorsi (posterior); Upper 4 ribs and serratus anterior (medial); Bicipital groove and humerus (lateral)
What are the contents of the axilla?
Axillary artery and branches, axillary vein and tributaries, cords of the brachial plexus
What lymph nodes are located in the axilla?
Anterior, posterior, infraclavicular, central, apical, lateral
What are the boundaries of the quadrangular space?
Teres minor and major, long head of the triceps, humerus
What are the contents of the quadrangular space?
Axillary nerve, posterior circumflex humeral artery and vein
What are the boundaries of the triangular space?
Teres minor and major, and long head of the triceps
What are the contents of the triangular space?
Circumflex scapular branch of subscapular artery
What are the boundaries of the cubital fossa?
Pronator teres, brachioradialis, line between the humeral epicondyle
What are the contents of the cubital fossa?
Radial nerve, tendon of biceps brachii, brachial artery, median nerve
What are the boundaries of the anatomical snuffbox?
Abductor pollicis longus, extensor pollicis brevis, extensor pollicis longus
What is the floor of the anatomical snuffbox?
Styloid process of radius, scaphoid, trapezium, base of the 1st metacarpus