1. The intemal carotid artery (i) begms at the level of the upper margin of the thyroid cartilage…

1. The intemal carotid artery (i) begms at the level of the upper margin of the thyroid cartilage. (ii) hes medial to the extemal carotid artery throughout its course. (iii) gives no branches in the neck. (iv) terminates in the anterior cranial fossa by dividing into the anterior and middle cerebral arteries. 2. The extemal carotid artery supplies direct branches to the (i) tongue. (Ü) face. (iii) thyroid gland. (iv) brain. 3. The carotid sheath encloses the (i) intemal jugular vein. (ii) vagus nerve. (iii) common carotid artery. (iv) cervical sympathetic trunk.