Neck Myology Flashcards
Anterior Triangle borders
Sup: Body of mandible
Ant: Midline of neck
Post: SCM
Triangles within Anterior Triangle
- Suprahyoid triangles: Submental and Submandibular
- Infrahyoid triangles: Muscle and Carotid
Submandibular Triangle borders
Separated by the anterior belly of the digastric m.
Submandibular Triangle contents
- Facial n.
- Hypoglossal n.
- Mylohyoid n.
- Submandibular gland
Submental Triangle contents
- Submental a.
- Submental LNs
Border of Muscular Triangle and Carotid Triangle
Superior belly of the omohyoid m.
Muscular Triangle contents
- Thyroid gland
- Parathyroid glands
Carotid Triangle contents
- Common carotid a.
- Internal jugular v.
- Vagus n.
- Spinal accessory n.
- Superior root of Ansa Cervicalis
- Thyroid
- Larynx/Pharynx
- Branches of Cervical Plexus
Borders of Posterior Triangle
Ant: posterior edge of SCM
Post: anterior edge of trapezius
Inf: Clavicle
Separation of occipital triangle and supraclavicular triangle
Inferior Belly of omohyoid m. (Occipital sup/supraclavicular inf)
Posterior Triangle contents
- Levator scapulae m.
- Ant/mid/inf scalene ms.
- Inferior belly of omohyoid m.
- Splenius capitis m.
Occipital triangle contents
- Ext. jugular v.
- Posterior branches of cervical plexus
- Transverse cervical a.
Supraclavicular triangle contents
- Subclavian a. (3rd part)
- Suprascapular a.
Anterior scalene m. IN
C4-6
Middle scalene m. IN
C3-8
Posterior scalene m. IN
C5-7
Mylohyoid m. IN
Mylohyoid N.
Geniohyoid m. IN
C1 (via hypoglossal N.)