The sciatic nerve extends from which nerve plexus?
A) cervical
B) sacral
C) brachial
B
Explanation:
A) The large sciatic nerve supplies the muscles of the hindlimb and extends from the sacral plexus.
C) The large sciatic nerve supplies the muscles of the hindlimb and extends from the sacral plexus. The brachial plexus is a network formed by the intertwining of cervical nerves C6, C7, and C8 and thoracic nerve T1. This plexus innervates muscles and other structures of the shoulder, forelimb, and thoracic wall.
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