Anterior triangle of neck

ANTERIOR TRIANGLE OF NECK

Q. 1

All of the following are in the anterior triangle of neck EXCEPT:

 A

Diagastric

 B

Subclavian

 C

Muscular

 D

Submental

Q. 1

All of the following are in the anterior triangle of neck EXCEPT:

 A

Diagastric

 B

Subclavian

 C

Muscular

 D

Submental

Ans. B

Explanation:

  • Posterior triangle of neck has 2 parts: Occipital & subclavian
  • Subclavian triangle is also c/d as supraclavicular or omoclavicular triangle.
  • Anterior triangles of neck are-Submental, Digastric, Carotid, Muscular.

Q. 2

Structure superficial to mylohyoid in anterior digastric triangle are all EXCEPT:

 A

Deep part of submandibular gland

 B

Hypoglossal nerve

 C

Part of parotid gland

 D

Mylohyoid artery & nerve

Q. 2

Structure superficial to mylohyoid in anterior digastric triangle are all EXCEPT:

 A

Deep part of submandibular gland

 B

Hypoglossal nerve

 C

Part of parotid gland

 D

Mylohyoid artery & nerve

Ans. D

Explanation:

  • Deep part of submandibular gland & hypoglossal neve are deep to mylohyoid muscle.
  • Structures passing superficial to mylohyoid in anterior part of digastric triangle are submandibular gland (superficial part), facial vein, facial artery, mylohyoid nerve & vessels, hypoglossal nerve & submandibular nodes.

Q. 3

All is true about digastric triangle EXCEPT:

 A

On either side is anterior belly of digastric muscle

 B

Floor is formed by mylohyoid muscle

 C

Floor is formed by hyoglossus muscle

 D

Contains mylohyoid nerve & vessels

Q. 3

All is true about digastric triangle EXCEPT:

 A

On either side is anterior belly of digastric muscle

 B

Floor is formed by mylohyoid muscle

 C

Floor is formed by hyoglossus muscle

 D

Contains mylohyoid nerve & vessels

Ans. A

Explanation:

  • Digastric triangle is bounded by anterior belly if digastric anteriorly & posterior belly posteriorly.
  • Mylohyoid & hyoglossus muscles are the floor.
  • Digastric triangle contains mylohyoid nerve & vessels, submandibular gland, facial artery & vein, hypoglossal nerve & submandibular lymph nodes.

Q. 4

On both sides submental triangle is bounded by:

 A

Hyoid bone

 B

Anterior digastric 

 C

Posterior digastric

 D

Mylohyoid

Q. 4

On both sides submental triangle is bounded by:

 A

Hyoid bone

 B

Anterior digastric 

 C

Posterior digastric

 D

Mylohyoid

Ans. B

Explanation:

  • Submental triangle is bounded by anterior belly of digastric (laterally), midline of the neck b/w the mandible & the hyoid bone (medially) & base of hyoid bone.
  • Mylohyoid muscle is at the floor & submental lymph nodes are the content.


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