Anterior Thorax and Neck - LO 4
4. Understand why areas are sometimes divided into anatomical ‘triangles.’ Describe the boundaries and contents of the anterior cervical triangle and deltopectoral triangle.
4. Understand why areas are sometimes divided into anatomical ‘triangles.’ Describe the boundaries and contents of the anterior cervical triangle and deltopectoral triangle.
Regions are often subdivided into anatomical triangles for better and more accurate communication regarding the location of structures, injuries, and pathologies among healthcare teams. Examples of anatomical triangles are as follows:
Anterior cervical triangle
Anterior cervical triangle
Boundaries
Medial: midline
Lateral: sternocleidomastoid m., anterior border
Superior: base of mandible
Contents
Viscera
Submandibular gland, superficial part
Thyroid gland
Parathyroid glands
Larynx
Pharynx
Hyoid bone
Carotid sheath and contents (common carotid a., internal jugular v., vagus n.)
Infrahyoid mm. and some suprahyoid mm.
Deltopectoral triangle
Deltopectoral triangle
Boundaries
Superolateral: deltoid m.
Superomedial: clavicle
Inferior: pectoralis major m.
Contents
Cephalic v.
Clavipectoral fascia