The scalene muscles of the neck, intercostal muscles of the rib cage, and the serratus anterior muscle of the shoulder complex all attach to the first rib.

The first rib and the clavicle are oriented in such a way that the clavicle ... The first rib moves upward, pulled up by the scalene muscles and is held in spasm by the scalene muscles subsequently.

Thoracic outlet procedures typically remove the first rib and some surrounding muscle. Surgery is not a first-line procedure. Learn more here.

Anterior to the scalene muscles, the first rib serves as an attachment for the first digitation of the serratus anterior, the subclavius muscle, and the costoclavicular ligament. The intercostal ...

First Rib Resection Thoracic outlet syndrome (TOS) is a group of conditions that occur when you have compressed nerves or blood vessels in the thoracic outlet. The thoracic outlet is the triangular ...

Thoracic outlet syndrome refers to a group of conditions characterized by the compression of the nerves, arteries, and veins that pass through the space between the collarbone and the first rib ...

TOS encompasses a variety of symptoms. Generally, the definition of TOS includes symptoms in the upper extremity related to compression on the nerves, artery, or vein in the thoracic outlet space just ...

Almost all cases of arterial TOS are associated with having an extra rib (neck rib) or an abnormal first rib.Once the artery has been narrowed, one of two things will happen. The artery may enlarge, ...