Triangles of the Neck Flashcards
Boundaries of the Posterior Triangle
Anterior: Posterior border of SCM
Posterior: Anterior border of trapezius
Inferior: Superior border of clavicle
Posterior Triangle: Veins
External Jugular Vein (EJV)
Posterior Triangle: Arteries
Transverse cervical artery
Subclavian artery
Suprascapular artery
Posterior Triangle: Nerves
Brachial plexus
CN 11 (Accessory Nerve)
Cutaneous branches of cervical plexus
Posterior Triangle: Muscles
Inferior belly of Omohyoid
Medial Scalenes
Posterior Scalenes
Levator Scapula
Splenius capitis
Posterior Triangle: Lymph Nodes
Cervical and supraclavicular lymph nodes
Name the boundaries of the Anterior Triangle
Anterior border of SCM
Midline of neck
Mandible
What are the 4 subdivisions of the anterior triangle?
Submandibular (Digastric)
Carotid
Muscular
Submental
Name the boundaries of the submandibular (diagastric) triangle
Posterior belly of digastric
Anterior belly of digastric
Mandible
Name the contents of the submandibular (digastric) triangle
Submandibular gland/duct
Submandibular lymph nodes
CN 12 (hypoglossal nerve)
Name the boundaries of the carotid triangle
Anterior border of SCM
Superior belly of Omohyoid
Posterior belly of Digastric
Name the veins/arteries in the carotid triangle
IJV - Internal Jugular Vein
CCA - Common Carotid Artery
ECA - External Carotid Artery
Name the nerves in the carotid triangle
CN 10, CN 11, CN 12
Ansa cervicalis
Branches of cervical plexus
Name the structures in the carotid triangle
Thyroid
Pharynx
Larynx
What are the boundaries of the muscular triangle?
Midline
Superior belly of omohyoid
SCM (anterior border)
