: the fact or status of being a citizen of a particular place. : the qualities that a person is expected to have as a responsible member of a community. the fact or status of being a citizen of a particular place. : the qualities that a person is expected to have as a responsible member of a community.
What is thoracic outlet syndrome (TOS)? Thoracic outlet syndrome (TOS) is a condition caused by compression of nerves or blood vessels in the thoracic outlet, the area between the base of the neck and the armpit, including the front of the shoulders and chest. There are three types of TOS: Vascular. This can be a compression of the artery and vein.
GENERAL FEATURES OF TOS. The thoracic outlet is an area of the body located within the lower part of the neck, beginning just above and behind the clavicle and overlying the first rib, and extending to the upper part of the arm.ENERAL FEATURES OF TOS. The thoracic outlet is an area of the body located within the lower part of the neck, beginning just above and behind the clavicle and overlying the first rib, and extending to the upper part of the arm.