Triangular interval

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Triangular interval
The scapular and circumflex arteries. (Triangular interval is visible but not labeled.)
Suprascapular and axillary nerves of right side, seen from behind. (Triangular interval is visible but not labeled.)

The triangular interval is the space between the long head of the triceps brachii and the humerus, just inferior to the teres major.

The radial nerve and profunda brachii pass through the triangular interval.

[edit] Additional images

Muscles on the dorsum of the scapula, and the Triceps brachii.

[edit] External links

• Photo at ithaca.edu
• Description at ucd.ie
• Description at uams.edu

v • d • e General anatomy of upper limbs

Arm: Clavipectoral triangle - Quadrangular space - Triangular space - Triangular interval - Axilla - Axillary sheath - Anterior axillary fold - Brachial fascia - Pectoral fascia - Axillary fascia - Fascial compartments of arm (Anterior, Posterior) - Lateral intermuscular septum - Medial intermuscular septum - Bicipital aponeurosis Forearm: Cubital fossa - Interosseous membrane of the forearm - Posterior compartment of the forearm - Anterior compartment of the forearm - Antebrachial fascia - Carpal tunnel - Common extensor tendon - Common flexor tendon Hand: Palmar aponeurosis - Finger - Extensor retinaculum of the hand - Flexor retinaculum of the hand - Anatomical snuff box - Extensor expansion