Search results
Results from the WOW.Com Content Network
Thoracic outlet syndrome (TOS) is a condition in which there is compression of the nerves, arteries, or veins in the superior thoracic aperture, the passageway from the lower neck to the armpit, also known as the thoracic outlet. [1] There are three main types: neurogenic, venous, and arterial. [1]
The superior thoracic aperture is essentially a hole surrounded by a bony ring, through which several vital structures pass. It is bounded by: the first thoracic vertebra (T1) posteriorly; the first pair of ribs laterally, forming lateral C-shaped curves posterior to anterior; and the costal cartilage of the first rib and the superior border of the manubrium anteriorly.
The rib cage or thoracic cage is an endoskeletal enclosure in the thorax of most vertebrates that comprises the ribs, vertebral column and sternum, which protect the vital organs of the thoracic cavity, such as the heart, lungs and great vessels and support the shoulder girdle to form the core part of the axial skeleton.
These variations can influence the efficiency of lymph drainage and immune responses. Confluence with Lymphatic and Venous Systems: The drainage patterns into the thoracic duct or directly into the venous system can vary among individuals. Atypical connections with other lymphatic structures or unusual terminations into the venous system may ...
A bifid inferior portion of the thoracic duct (due to a failure of fusion during embryonic development) is not uncommonly observed; a plexus of lymphatic vessels replacing the thoracic duct inferiorly and only coalescing into a single duct in the mediastinum may also occur. Rarely, the thoracic duct may be entirely bilaterally paired. [3 ...
Linburg-Comstock variation - or conjoint flexor pollicis longus and flexor digitorum profundus of the index; Sternalis muscle - or rectus thoracis; Psoas minor muscle; Palmaris profundus muscle; Pterygoideus proprius muscle; Styloauricularis muscle; Transversus nuchae muscle; Accessory popliteus muscle; Tensor fasciae suralis muscle ...
The thoracic cavity (or chest cavity) is the chamber of the body of vertebrates that is protected by the thoracic wall (rib cage and associated skin, muscle, and fascia). The central compartment of the thoracic cavity is the mediastinum .
The military brace is a body posture, sometimes known as scapular posterior depression or the costoclavicular maneuver. It is a modification of standing at attention that is primarily used in military schools. It is also used in the diagnosis of costoclavicular syndrome and thoracic outlet syndrome. [1] [2]