Anterior Triangle of the Neck - Digastric Triangle скачать в хорошем качестве

Anterior Triangle of the Neck - Digastric Triangle

DIGASTRIC TRIANGLE Boundaries The boundaries of the digastric triangle are as follows. Anteroinferiorly : Anterior belly of digastric. Posteroinferiorly: Posterior belly of digastric and the stylohyoid. Superiorly or base: Base of the mandible and a line joining the angle of the mandible to the mastoid process Roof: The roof of the triangle is formed by: 1. Skin. 2. Superficial fascia, containing: a. The platysma. b. The cervical branch of the facial nerve. c. The ascending branch of the transverse or anterior cutaneous nerve of the neck. 3. Deep fascia, which splits to enclose the submandibular salivary gland Floor: The floor is formed by • the mylohyoid muscle anteriorly, • the hyoglossus posteriorly. • A small part of the middle constrictor muscle of the pharynx, appears in the floor Contents Anterior Part of Triangle • Structures superficial to mylohyoid are: 1. Superficial part of the submandibular salivary gland 2. The facial vein and the submandibular lymph nodes are superficial to it and the facial artery is deep to it. 3. Submental artery 4. Mylohyoid nerve and vessels. 5. The hypoglossal nerve. • Posterior Part of Triangle 1. Superficial structures are: a. Lower part of the parotid gland. b. The external carotid artery before it enters the parotid gland. 2 Deep structures, passing between the external and internal carotid arteries are: a. The styloglossus. b. The stylopharyngeus. c. The glossopharyngeal nerve d. The pharyngeal branch of the vagus nerve. e. The styloid process. f. A part of the parotid gland. 3 Deepest structures include: a. The internal carotid artery. b. The internal jugular vein. c. The vagus nerve. ---------------------------------------------------------------------------------------------------------------- Follow me on twitter -   / drspgeetha1   Reddit -   / geethahari29   Instagram -   / geethahari182   Linkedin -   / geetha-hari-314068170   Tumblr - https://www.tumblr.com/blog/geethahari My website - https://human-anatomy-lessons.busines... ---------------------------------------------------------------------------------------------------------------- Follow me in blogspot - https://human-anatomylessons.blogspot... _________________________________________________________________________________________________________________ Visit my blogs - https://humananatomyonline.in/ Contact me @ https://t.me/humananatomylessons