Posterior Triangle of Neck

Learning Objectives

After reading this post you will know:

  • Structures forming boundaries, roof and floor of posterior triangle of neck.
  • Subdividions of  posterior triangle of neck.
  • Contents of  occipital and subclavian triangle.
  • Clinical significance of subclavian triangle.
  • Origin, insertion, action and nerve supply of sternocleidomastoid muscle.

 

Q. Enumerate the :

  1. Structures forming the boundaries of posterior triangle.
  2. Structures forming roof of posterior triangle
  3. Cutaneous nerves supplying skin of side of neck
  4. Muscles forming floor of posterior triangle
  5. Subdivisions of posterior triangle
  6. Contents of occipital and subclavian triangles

 

Boundaries of posterior triangle

 

Roof of posterior triangle

 

Cutaneous nerves of neck

 

Muscles forming floor of posterior triangle

 

 

Subdivisions of posterior triangle

     

 

 Contents of occipital and supraclavicular(subclavian) triangles

 

 

Clinical significance of supraclavicular triangle

 

 

Sternocleidmastoid muscle

 

 

 

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