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What is Which muscle paralysis can cause 'Winging of scapula'? and explain in detail?
Ans. a (Serratus anterior) (Ref. Maheshwari orthopedics 4th/56)LONG THORACIC NERVE# Arises from ventral rami of C5, C6, and C7.# Descends behind the brachial plexus on the lateral surface of the serratus anterior, to which it supplies.# The serratus anterior muscle can be examined by asking patient to push against a wall with both hands. Winging of scapula will be typically noted.