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Posterior triangle of neck is subdivided into two parts by which muscle?

 # Posterior triangle of neck is subdivided into two parts by which muscle?
A. Sternocleidomastoid
B. Superior belly of Omohyoid
C. Inferior belly of Omohyoid
D. Pulley of Trapezius



The correct answer is C. Inferior belly of Omohyoid.

The posterior triangle of the neck is divided into two smaller triangles: the occipital triangle and the subclavian (supraclavicular) triangle. This division is created by the inferior belly of the omohyoid muscle.

Here’s a breakdown of the other options:

A. Sternocleidomastoid: Forms the anterior border of the posterior triangle, but does not subdivide it.
B. Superior belly of Omohyoid: Lies more anteriorly and is not involved in subdividing the posterior triangle.
D. Pulley of Trapezius: The trapezius muscle forms the posterior boundary of the posterior triangle but does not subdivide it.

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