Lymphatic drainage of anterior pa of nose is to?

Ans. is 'a' i.e., Submandibular LNAnetrior half of nasal cavity (including anterior pa of nasal septum) drains into submandibular nodes. Submandibular nodes These nodes lie deep to investing layer of deep cervical fascia in submandibular triangle, between the deep fascia and submandibular gland.These nodes receive afferents from centre of forehead; anterior pa of nasal cavity; frontal, maxillary and ethmoidal air sinuses; inner canthus (medial angle of eye); whole of upper lip and anterior pa of cheek with underlying gum and teeth; outer pa of lower lip with lower gums and teeth excluding incisors; anterior two third of tongue excluding the tip; floor of mouth; and angle of mouth.These nodes also receives efferents of submental nodes.Submandibular nodes drain into (efferent) upper and lower deep cervical nodes.