Anatomy
·Upper Limb
Quadrangular & Triangular Spaces
⭐ PREMIUM
Three intermuscular spaces in the posterior scapular region transmit specific neurovascular structures — a classic spot question.
QUADRANGULAR SPACE
• Boundaries: teres minor (above), teres major (below), long head of triceps (medial), surgical neck of the humerus (lateral).
• Transmits: AXILLARY NERVE + posterior circumflex humeral artery.
• Quadrangular space syndrome → axillary nerve compres…
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