Landmarks of the Neck

Surface Landmarks

Hyoid bone
Laryngeal prominence
Arch of cricoid cartilage
Sternocleidomastoid
Greater supraclavicular fossa
Trachea
Suprasternal fossa Fig. 2-2 Surface landmarks of the neck (The head is fully extended)

Neck Triangles

The sternocleidomastoid muscle divides each side of the neck into two major triangles:

Anterior Triangle
- Submandibular triangle
- Submental triangle
- Carotid triangle
- Muscular triangle
Posterior Triangle
- Occipital triangle
- Supraclavicular triangle

Anterior triangle Borders: - Laterally: posterior border of the SCM - Medially: midline - Superiorly: lower border of the mandible Posterior triangle Borders: - Anteriorly: posterior border of the SCM - Inferiorly: clavicle - Posteriorly: anterior border of trapezius muscle

Anatomy:

The anterior triangle is situated at the front of the neck.

It is bounded:

Superiorly Inferior border of the mandible (jawbone).
Laterally Anterior border of the sternocleidomastoid.
Medially Sagittal line down the midline of the neck from the chin to the manubrium .