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| Anterior triangle of the neck |
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| The triangles of the neck. (Anterior triangles to the left; posterior triangles to the right.) |
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| Side of neck, showing chief surface markings. (Nerves are yellow, arteries are red.) |
| Gray's |
subject #145 563 |
The anterior triangle is bounded, in front, by the middle line of the neck; behind, by the anterior margin of the Sternocleidomastoideus; its base, directed upward, is formed by the lower border of the body of the mandible, and a line extending from the angle of the mandible to the mastoid process; its apex is below, at the sternum.
This space is subdivided into four smaller triangles by the Digastricus above, and the superior belly of the Omohyoideus below.
These smaller triangles are named:
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This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.
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General anatomy of head and neck |
| HEAD: Face/Occiput: Forehead – Eye – Ear – Temple - Cheek – Chin
External nose: Nostril - Nasal septum - Cartilages (Accessory nasal, of the septum, Greater alar, Lateral nasal, Lesser alar, Vomeronasal) - Olfactory glands
Nasal cavity: Choana - Turbinate - Sphenoethmoidal recess - Ethmoid bulla - Hiatus semilunaris - Ostium maxillare - Inferior meatus - Vomeronasal organ - Paranasal sinus
Mouth/oral cavity: Lip - Philtrum - Jaw - Pterygomandibular raphe
Teeth: Permanent (Incisor - Canine, Premolar, Molar) - Deciduous
Tongue: Plica fimbriata - Median sulcus - Foramen cecum - Terminal sulcus - Frenulum linguae - Anterior tongue - Posterior tongue
Palate/roof of mouth: Hard palate, Soft palate - Palatine raphe - Incisive papilla - Uvula - Pharyngeal recess - Arches: (Palatoglossal, Palatopharyngeal)
Salivary glands: (Parotid - Sublingual - Submandibular) - Ducts: Submandibular - Parotid
Masseteric fascia - Temporal fascia - Galea aponeurotica - Scalp
NECK: Throat – Pharynx - Larynx
Cartilages: Cricoid - Thyroid (Adam's apple) - Epiglottis - Arytenoid - Cuneiform - Corniculate
Extrinsic ligaments: Thyrohyoid membrane (Lateral thyrohyoid ligament, Median thyrohyoid ligament) - Hyoepiglottic ligament - Cricotracheal ligament Intrinsic ligaments: Cricothyroid ligament
Folds: (Glossoepiglottic - Aryepiglottic - Vocal - Vestibular) - Vocal ligament - Ventricle of the larynx - Infraglottic cavity - Vestibule of larynx - Rima glottidis - Glottis
Triangles of the neck: Anterior of the neck (Muscular, Carotid, Submandibular, Submental) - Posterior of the neck (Occipital, Subclavian) - Suboccipital
Deep cervical fascia (Pretrachial fascia, Prevertebral fascia, Investing layer) - Carotid sheath
Retropharyngeal space
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