FACIAL ARTERY AND IMPORTANT MUSCLES

Question 1

FACIAL ARTERY FORMATION

Answer 1

from external carotid artery in the carotid triangle of neck

Question 2

COURSE

Answer 2

winds around mandible and pierces deep fascia at anteroinferior angle of masseter. ( can be palpated here- anaesthist’s artry)
runs upwards and forwards till medial angle of eye and terminates supplying lacrimal sac
Tortuous course to prevent unduly stretching during movement of mandible, cheek, lips.

Question 3

TERMINATION

Answer 3

terminates by anastomoses with branches of opthalmic artery. ( dorsal nasal branch)

Question 4

BRANCHES

Answer 4

Anterior branches-
1.Supeior labial-upper lip and anteroinferior part of nasal septum
2.inferior labial- lower lip
3.lateral nasal- ala and dorsum of nose
Posterior branches
small & unamed

Question 5

ANASTOMOSES

Answer 5

anterior br- with similar arteries of opp. side
with branches of opthalmic ar
posterior br. with br. of transverse facial and infraorbital ar.