What is posterior triangle?

The posterior triangle has the following boundaries: Apex: Union of the sternocleidomastoid and the trapezius muscles at the superior nuchal line of the occipital bone. Anteriorly: Posterior border of the sternocleidomastoideus. Posteriorly: Anterior border of the trapezius. Inferiorly: Middle one third of the clavicle.

What passes through the posterior triangle?

Prominent veins coursing through the posterior neck triangle include the terminal portion of the external jugular vein located on the inferior portion, as well as the subclavian vein. The suprascapular vein and transverse cervical vein join the external carotid vein in the inferior portion of the triangle.

What is contained in the posterior triangle of the neck?

The posterior triangle contains level 5 lymph node chains. These include spinal accessory and transverse cervical nodes. Depending on the location of the nodes above or below the accessory nerve, they are sub grouped as level 5a (above) or level 5b (below).

What is supraclavicular triangle?

The subclavian triangle (or supraclavicular triangle, omoclavicular triangle, Ho’s triangle), the smaller division of the posterior triangle, is bounded, above, by the inferior belly of the omohyoideus; below, by the clavicle; its base is formed by the posterior border of the sternocleidomastoideus.

What lymph nodes are in the posterior triangle?

This refers to the lymph nodes located in the posterior triangle of the neck. These include the spinal accessory, transverse cervical, and supraclavicular group of nodes. Level V is bound anteriorly by the posterior border of the sternocleidomastoid muscle and posteriorly by the anterior border of the trapezius muscle.

What is the back of the neck called?

cervical spine
The cervical spine – the neck and upper back, composed of the seven vertebrae closest to the skull. The cervical spine supports the weight and movement of your head and protects the nerves exiting your brain.

Why is the triangle of the neck important?

There are many triangles in the neck containing arteries, veins, nerves, lymph vessels and nodes, and other important structures. A better understanding of the anatomy of these triangles of the neck could help to minimize surgical injuries and make surgical dissections more efficient.

Where is the supraclavicular triangle?

neck
The supraclavicular triangle is one of the paired triangles in the posterior triangle of the neck. The triangles of the neck are surgically focused, first described from early dissection-based anatomical studies which predated cross-sectional anatomical description based on imaging (see deep spaces of the neck).

What is supraclavicular hollowing?

The Supraclavicular fossa is an indentation (fossa) immediately above the clavicle. In terminologia anatomica, it is divided into fossa supraclavicularis major and fossa supraclavicularis minor. Fullness in the supraclavicular fossa can be a sign of upper extremity deep venous thrombosis.

What is neck triangle?

The triangular space in front of this muscle is called the anterior triangle of the neck; and that behind it, the posterior triangle of the neck. The anterior triangle is further divided into muscular, carotid, submandibular and submental and the posterior into occipital and subclavian triangles.

What does a swollen supraclavicular lymph node mean?

Swelling and pain in the lymph nodes are signs of an infection and sometimes, a malignancy (a cancerous tumor). The swollen supraclavicular lymph nodes are easily felt as small tender lumps at the top of the collarbone.

How do you know if your atlas is out?

Typical symptoms of an atlas misalignment or an atlas blockage are:

1. headache and migraines.
2. deafness, tinnitus or noise in the inner ear.
3. pain in the jaw.
4. neck pain or a stiff neck.
5. extreme muscle stiffness and restricted shoulder movement.
6. back pain in the lumbar spine as well as hip pain and pelvic misalignment.