Anatomy of the Neck:

Anatomy of the Neck:

Scalene Muscles:

• A ruptured scalene muscle can cause a tear in the middle scalene and the jugular vein attached to it.

• If not sutured, air can enter causing embolism.

Accessory Muscles of the Common Carotid Artery:

• The sternothyroid muscle is an accessory muscle of the common carotid artery.

Trachea:

• The trachea is formed by two sternothyroid and two sternohyoid muscles.

Sedillot’s Triangle:

• Sedillot’s Triangle is bounded by the two sternomastoid muscle bundles.

• It’s a location where the common carotid artery and phrenic nerve can be palpated.

Carotid Sheath:

• The carotid sheath encloses the common carotid artery, internal jugular vein, and vagus nerve.

• Each structure has a separate sheath.

Facial Nerve Paralysis:

• Facial nerve paralysis causes an inability to express facial expressions, with the mouth pulled to the unaffected side, and drooling.

• The cause is damage to the 7th cranial nerve.