VASCULARIZATION OF THE HEAD AND NECK

Blood will flow retrogradely into the artery from the ext carotid artery on the other side through communications between its branches. When ext carotid or subclavian arteries are ligated – desc br of occipital a = main collateral circln. Carotid triangle – impt surgical approach to carotid syst of a, the IJV, CN X and XII, and cerv symp trunk. ................
................