Triangles (FINAL)

Literally when will I use this

R and L anterior triangles of neck boundaries

Body of mandible, SCM, imaginary line from mandibular symphysis to jugular notch

Submental triangle boundaries

Imaginary line, medial borer of anterior belly of digastric, hyoid

Submandibular triangle boundaries

Lateral border of anterior belly of digastric, superior border of posterior belly of digastric

Submental triangle contents

Submental lymph nodes that drain oral cavity

Submandibular triangle contents

Submandibular lymph nodes that drain orbit and cheek

Submandibular salivary gland

Carotid triangle boundaries

Inferior aspect of posterior bely of digastric, medial border of SCM, lateral border of superior belly omohyoid

Carotid triangle contents

Common carotid bifurcation + carotid pulse

Carotid body and sinus

Internal jugular vein

First 5 external carotid branches (SALFO)

Muscular triangle boundaries

Medial border of superior belly omohyoid, medial border or SCM, neck midline

Muscular triangle contents

Larynx

Thyroid gland

Superior thyroid artery

Below floor is carotid artery + sheath, internal jugular vein and CN X

R posterior triangle boundaries

Lateral border of trapezius, lateral border of SCM, clavicle

Supraclavicular triangle boundaries

Inferior belly of omohyoid, clavicle, lateral border of SCM

Occipital triangle boundaries

Inferior belly of omohyoid, lateral border of trapezius, lateral border of SCM

Occipital triangle contents

CNX on way to traps

Lymph nodes along posterior SCM

Supraclavicular triangle contents

Brachial plexus, subclavianartery/vein, external jugular