Step 1 - Dissection of the Neck

Preparation: You should finish skinning the anterior neck if you have not done so already. Review the cutaneous branches from the cervical plexus and reflect the platysma muscle superiorly to the mandible.
NOTE: Be very careful not to cut the facial artery where it crosses the mandible.

1. This dissection is one you have seen before showing the platysma muscle, the external jugular vein, and the great auricular nerve.

2. Identify the various triangles in the region formed by the digastric and omohyoid muscles including the carotid triangle and the submandibular triangle.