The posterior triangle of the neck contains many muscles which make up the borders and the floor of the area.
Muscles of the floor of the posterior triangle of the neck.
The muscular floor of posterior triangle is covered by prevertebral layer of deep cervical fascia which creates the fascial carpeting of the floor of the posterior triangle.
A significant muscle in the posterior triangle region is the omohyoid muscle.
The following structures are superficial to the prevertebral tascia.
It creates axillary sheath around subclavian artery and brachial plexus going from the root of the neck to the upper limb.
The posterior triangle of the neck contains many muscles which make up the borders and the floor of the area.
Middle one third of the clavicle.
It is split into two bellies by a tendon.
The posterior triangle has the following boundaries.
Posterior border of the sternocleidomastoideus.
Interior belly ot the omohyoid muscle.
A significant muscle in the posterior triangle region is the omohyoid muscle.
Union of the sternocleidomastoid and the trapezius muscles at the superior nuchal line of the occipital bone.
Courses from the hyoid bone en route to the scapula within the pretracheal fascia.
The prevertebral fascia forms the floor of the posterior triangle of the neck figure 26 1c and d.
The roof is formed by fascia and the floor is formed by the splenius capitus levator scapulae and scalene muscles.