Triangles Flashcards
Vertebral Level for Thyroid Cartilage, Carotid Bifurcation, Hyoid Bone
C3-C4
Vertebral Level for Cricoid Cartilage, Esophagus, Trachea
C5-C6
Anterior Triangle
Midline of Neck
SCM
Lower border of Mandible
Posterior Triangle
SCM
Trapezoid
Clavicle
Submandibular Borders
Anterior Digastric
Posterior Digastric
Inferior Mandible
Submental Borders
Midline of Neck
Anterior Digastric
Body of Hyoid
Muscular Borders
Body of Hyoid
Superior Omohyoid
SCM
Carotid Borders
Posterior Digastric
Superior Omoyoid
SCM
Posterior Triangle Floor
Splenius Capitus Levator Scapulae Posterior Scalene Middle Scalene Anterior Scalene Omohyoid
Investing Layer
Surrounds Entire Neck
Encloses SCM and Traps
Encloses Parotid and submandibular
Pretracheal Layer
Anterior Region of Neck
Blends with pericardium of heart
Infrahyoid muscles
Prevertebral Layer
Encloses Vertebral Column
+ Muscles
Extends laterally as axillary sheath to arm
Phrenic N
Carotid Sheath
Internal Jugular Vein
Common Carotid A
Vagus N
Retropharyngeal Space
Posterior to the Pharynx
Superior Sympathetic Ganglion
Laryngeal Spaces: Rima Glottidis
Between true Vocal Folds