Anterior Triangle of Neck

Question 1

Four Triangles

Answer 1

Submental (unpaired)
Submandibular
Carotid
Muscular

Question 2

Submental Triangle

Answer 2

Contents: Lymph nodes, tributaries to anterior jugular vein

Question 3

Submandibular Triangle

Answer 3

Contents: Submandibular gland, lymph nodes, Hypoglossal Nerve [XII], mylohyoid nerve, facial artery and vein

Question 4

Carotid Triangle

Answer 4

Contents: 
Tributaries to common facial vein
Cervical branch of Facial [VII]
Common carotid artery
External and internal carotid arteries
Lots of arteries
Internal jugular vein
X, XI, XII
Superior and inferior roots of ansa cervicalis
Transverse cervical nerve

Question 5

Muscular Triangle

Answer 5

Contents:
Muscles: Sternohyoid, omohyoid, sternothyroid, thyrohyoid
Glands: thyroid and parathyroid
Pharynx