cervical branch of facial nerve

cer·vi·cal branch of fa·cial nerve

[TA]
the most inferior branch of the parotid plexus of the facial nerve, it descends to innervate the platysma muscle.

cer·vi·cal branch of fa·cial nerve

(sĕrvi-kăl branch fāshăl nĕrv) [TA]
Most inferior branch of parotid plexus of facial nerve; descends to innervate platysma muscle.