LAB: Triangles of the Neck
Created by Lauren Parnell, '09
and Nicholas Cohen, '09
LEARNING OBJECTIVE:
SLIDE #1
The neck can be thought of as 2 columns within one cylinder:
Lateral to these columns are:
carotid artery, internal jugular vein, and vagus nerve, all in the carotid sheath
Anterior Column = Visceral Column
Contains viscera: Trachea, Larynx,
Esophagus, Pharynx,
Thyroid, Parathyroid
Covered by pre-tracheal layer of deep cervical fascia
Posterior Column = Vertebral Column
Contains vertebrae, nerves, and associated musculature: 7 cervical vertebrae
8 cervical spinal nerves
Scalene muscles
Phrenic nerve
Sympathetic Trunk
Covered by pre-vertebral layer of deep cervical fascia
Each of these columns is contained within a single cylinder that consists of three layers:
(1) Outer investing layer of deep cervical fascia, (2) Superficial fascia, (3) Skin
