IMED3002 Lecture Notes - Lecture 2: Foramen Lacerum, Internal Jugular Vein, Cavernous Sinus
28 May 2020
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Va: cerebral arterial arch = circle of willis: brain drains via internal jugular vein. Face + neck drains via the external carotid vein. Anterior triangles of the head: muscular triangle (in blue, strap muscles of the neck, manipulate the position of larynx and pharynx, midline to hyoid bone, sternocleidomastoid, omohyoid line. Submental triangle (in green: mylohyoid muscle forms the floor of the mouth, midline above the hyoid bone to mandible, hyoid bone to lesser horn, anterior belly of the digastric muscle. Submandibular triangle (in red: gland + artery, holds the submandibular gland + facial artery, along line of mandible above both digastric bellies. 3)facial (tortuous to enable the jaw to go up and down and to extend) 5)posterior auricular (behind the ear and up to the top of the parietal) Terminating branches: maxillary: mastication muscles and parts of the palate and meninges.
