Nerve Plexuses Flashcards

Flashcards for key nerve plexuses and their innervations, focusing on the cervical, brachial, lumbar, and sacral plexuses, as well as specific nerves like the phrenic, femoral, obturator, and sciatic nerves.

Cervical Plexus

Innervates skin of neck, ear, back of head, and shoulders; also innervates neck muscles.

Phrenic Nerve

Supplies the diaphragm.

Brachial Plexus

Supplies the upper limb.

Lumbar Plexus

Gives rise to the femoral nerve (supplies thigh region) and obturator nerve (supplies adductor muscles).

Femoral Nerve

Supplies the thigh region; originates from the lumbar plexus.

Obturator Nerve

Supplies the adductor muscles; originates from the lumbar plexus.

Sacral Plexus

Supplies buttock, lower limb, pelvic structures, and perineum.

Sciatic Nerve

Supplies the posterior thigh; originates from the sacral plexus.