Image Based Question-65328

All of the following structures are within this structure which is marked by arrow except:

A. Facial artery

B. Facial nerve

C. External carotid artery

D. Retromandibular vein

Correct Answer » A Explanation

The structure marked in image is parotid gland

Arteries:

• External carotid artery enters through posteromedial surface
• Maxillary artery
• Superficial temporal vesseL
• Posterior auricular artery

Veins:

• The retromandibular veins is formed within the gland by the union of the superficial temporal and maxillary veins.
• In the lower part of the gland, the vein divides into anterior and posterior divisions which emerge at the apex of the gland.

Facial Nerve:

• It enters the gland through the upper part of its posteriomedial surface, and divides into its terminal branches within the glands.
• Branches appear on the  surface at the anterior border.
• The arrangement of Branches of Facial nerve after exiting from Parotid gland is given the name as Pes Anserinus.