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OT4 Otolaryngology
Head and Neck
Temporal branch Zygomatic branch
Buccal branch
Styloid process Mastoid process Stylomastoid foramen
Facial n. (CN VII) Posterior belly of digastric m.
Parotid gland Mandibular branch
Marginal mandibular branch Cervical branch
Figure 7. Extratemporal segment of facial nerve Branches of facial nerve (in order from superior to inferior) To Zanzibar By Motor Car
Post. belly digastric m.
Ant. belly digastric m.
Hyoid bone Sternohyoid m.
Omohyoid m. Anterior triangle
External carotid a.
Common carotid a. bifurcation
Internal jugular v.
Ant. belly omohyoid m.
Post. belly omohyoid m.
Sternohyoid m. Trachea
Basic Anatomy Review
Toronto Notes 2019
Angular a. Lateral nasal a.
Superior labial a. Inferior labial a.
Facial a. Lingual a.
Superior thyroid a.
Superficial temporal a. Maxillary a.
Occipital a. Posterior auricular a.
Ascending pharyngeal a.
Internal carotid a. External carotid a.
Common carotid a.
Figure 8. Blood supply to the face
Branches of the external carotid artery (in order from inferior to superior) Some Angry Lady Figured Out PMS
Anterior Triangle
Common carotid a. bifurcation
Sternocleidomastoid m. Posterior triangle
Trapezius m.
Hyoid bone
Thyrohyoid membrane
Thyroid cartilage
Median cricothyroid ligament
Sternocleidomastoid m.
Cricoid cartilage Thyroid gland
Clavicle
© Inessa Stanishevskaya 2012 after
• •
• •
submental triangle
submandibular
(or digastric) triangle
carotid triangle muscular triangle
Posterior Triangle
occipital triangle • subclavian triangle •
© Lisa Qiu 2019, after
Sternocleidomastoid m. Greater auricular n. Lesser occipital n. Ventral ramus (C2) Ventral ramus (C3) Accessory n. (CN XI)
Ventral ramus (C5)
Anterior scalene m. Phrenic n.
Brachial plexus © Kateryna Procunier 2014, after
Digastric m.
Hypoglossal n. (CN XII)
Superior root ansa cervicalis
Inferior root ansa cervicalis
Vagus n.
Figure 9. Anatomy of the neck
Subclavian a. and v.
© M. Romanova 2010
© Sean Wang 2007