THORAX ABDOMEN AND PELVIS

Detailed explanation-1: -The facial artery is a branch of the external carotid artery that supplies the anatomic structures of the superficial face. The facial artery arises from the carotid triangle which is formed by the superior belly of the omohyoid muscle, the sternocleidomastoid, and the posterior belly of the digastric .

Detailed explanation-2: -The facial artery is also known as the external maxillary artery. It has a tortuous route along the nasolabial fold towards the medial angle of the eye. It passes deep to the digastric and stylohyoid muscles and it will pass through the submandibular gland.

Detailed explanation-3: -C1: Cervical. C2: Petrous. Caratiotympanic artery. Vidian artery. C3: Lacerum. C4: Cavernous. Meningohypophyseal trunk. Inferolateral trunk. C5: Clinoid. C6: Ophthalmic. Ophthalmic artery. Superior hypophyseal trunk. C7: Communicating. Posterior communicating artery. Anterior choroidal artery. Anterior cerebral artery (ACA)