Triangle Borders Vessels and Nerves

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Triangles of the Neck:



Vessels and Nerves

Other Contents

Anterior Triangle

Anterior border of SCM (laterally), inferior border of mandible (superiorly), and midline of the neck (medially)

Common carotid arteries and their branches: the external and internal carotids

Internal jugular vein and its tributaries

Cranial Nerves [VII], [IX], [X], [XI], and [XII], Transverse Cervical Nerve (from cervical plexus), and upper and lower roots of the ansa cervicalis

Thyroid and parathyroid glands, cricoid cartilage, esophagus, trachea


Inferior border of mandible, anterior and posterior digastric bellies

[XII], mylohyoid nerve, facial artery and vein

Suprahyoid muscles, submandibular gland, submandibular lymph nodes


Hyoid, anterior digastric belly, and midline

Tributaries to anterior jugular vein

Suprahyoid muscles, submental lymph nodes


Hyoid bone, superior omohyoid belly, anterior border of SCM, and midline

Infrahyoid muscles, thyroid and parathyroid glands, pharynx


Superior omohyoid belly , stylohyoid, posterior digastric belly, and anterior border of SCM

Tributaries to common facial vein, cervical branch of [VII], common carotid artery, external and internal carotid arteries, superior thyroid a., ascending pharyngeal a., facial and lingual aa., occipital a., internal jugular vein, [X], [XI], [XII], superior and inferior roots of ansa cervicalis, and transverse cervical nerve

Posterior Triangle

SCM (anteriorly), trapezius (posteriorly), middle 1/3 clavicle (basally), occipital bone (apically)

External jugular vein, posterior external jugular vein, subclavian artery and vein, transverse cervical artery, suprascapular artery, [XI], branches of cervical plexus, brachial plexus

Inferior belly of omohyoid


SCM, omohyoid, clavicle

Subclavian branches, phrenic nerve

Anterior scalene

Directory: Anatomy%20Course -> Folder%20-%208%20-%20Head%20and%20Neck
Folder%20-%208%20-%20Head%20and%20Neck -> The Cranial Nerves
Folder%20-%208%20-%20Head%20and%20Neck -> The Skull Cranium: Anterior View
Folder%20-%208%20-%20Head%20and%20Neck -> The Face Muscles of the Face
Folder%20-%208%20-%20Head%20and%20Neck -> Gross Anatomy 2008 Triangles and Associated Structures of the Neck- part 1
Folder%20-%208%20-%20Head%20and%20Neck -> Objectives for the Head (Chapter 8) Gray’s Anatomy for Students
Folder%20-%208%20-%20Head%20and%20Neck -> What is the function of arachnoid granulations? Where are they located? Arachnoid granulations
Folder%20-%208%20-%20Head%20and%20Neck -> The Neck Bones, Ligaments, and Joints: Bones
Folder%20-%208%20-%20Head%20and%20Neck -> Neck Forum – 2011 Injury to sympathetic chain in the neck…syndrome? Sx…anatomical rationale for Sx?
Folder%20-%208%20-%20Head%20and%20Neck -> Objectives for the Neck (Chapter 8) Gray’s Anatomy for Students
Folder%20-%208%20-%20Head%20and%20Neck -> The Neck Bones, Ligaments, and Joints: Bones

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