transition regions of the upper limb Flashcards
Name the limits of the anatomical snuffbox
Anterior: abductor pollicis longus + extensor pollicis brevis tendons
Posterior: extensor pollicis longus tendon
Floor: scaphoid
Name the tendons and nerve(s) that pass through the carpal tunnel
Flexor digitorum superficialis + profundus, flexor pollicis longus + median nerve
Which structure (muscle or nerve) is most commonly compressed in the carpal tunnel? What is that syndrome called?
Median nerve, carpal tunnel syndrome
Name the structures that don’t pass through the carpal tunnel
Ulnar + radial nerves, flexor carpi radialis + ulnaris, palmaris longus
Where is the cubital fossa located?
In the anterior portion of the forearm, close to the zone where the elbow is flexed
Name the limits of the cubital fossa
Medial: pronator teres
Lateral: brachioradialis
Base: line of elbow flexion
Name the structures that pass through the cubital fossa
Brachial artery, median nerve + distal tendon of the biceps
The radial + ulnar arteries derive from…
The brachial artery
Nerve that is covered by the brachioradialis
Radial nerve
The suprascapular foramen is formed by … and …
Suprascapular notch + the superior transverse scapular ligament
Name the nerve that passes through the suprascapular notch + descends into the supra- and infraspinous fossae
Suprascapular nerve
Name the limits of the quadrangular space (upper limb)
Lateral: humerus
Medial: long head of triceps
Superior: teres minor
Inferior: teres major
Name the limits of the triangular interval (upper limb)
Superior: teres major
Lateral: humerus
Medial: long head of triceps
Name the structures that pass through the triangular interval
Radial nerve + profunda brachii artery
Name the structures that pass thorugh the quadrangular space
Axillary nerve + posterior circumflex humeral artery & vein
Name the limits of the triangular space (upper limb)
Superior: teres minor
Lateral: long head of triceps
Inferior: teres major
Name the structures that pass thorugh the triangular space
Circumflex scapular artery
The anterior wall of the axilla is formed by the …
Pec major
The lateral axillary wall is formed by the…
Humerus
The posterior wall of the axilla is formed by … and …
The latissimus dorsi + teres major
The medial axillary wall is formed by the…
Thoracic wall + serratus anterior
The … makes up the floor of the axillary space
Skin
