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The mediastinum (from Medieval Latin: mediastinus, lit. 'midway'; [2] pl.: mediastina) is the central compartment of the thoracic cavity.Surrounded by loose connective tissue, it is a region that contains vital organs and structures within the thorax, namely the heart and its vessels, the esophagus, the trachea, the vagus, phrenic and cardiac nerves, the thoracic duct, the thymus and the lymph ...
The internal thoracic artery (ITA), also known as the internal mammary artery, is an artery that supplies the anterior chest wall and the breasts. [1] It is a paired artery, with one running along each side of the sternum, to continue after its bifurcation as the superior epigastric and musculophrenic arteries.
Superiorly, the retropharyngeal space terminates at the base of the skull (more specifically, at the clivus [2]). [1] [5] Inferiorly, the true RPS terminates at a variable level along the upper thoracic spine with the fusion of alar fascia and visceral fascia; [1] sources either give the inferior termination of the true RPS as occurring at approximately the vertebral level of T4 [2] or at a ...
The bony skeletal part of the thoracic wall is the rib cage, and the rest is made up of muscle, skin, and fasciae.. The chest wall has 10 layers, namely (from superficial to deep) skin (epidermis and dermis), superficial fascia, deep fascia and the invested extrinsic muscles (from the upper limbs), intrinsic muscles associated with the ribs (three layers of intercostal muscles), endothoracic ...
Superior mediastinum. The thoracic ducts ascends into the superior mediastinum, reaching 2-3cm superior to the clavicle, [3] as high up as the C7 vertebral level. [5] In the superior mediastinum, the thoracic duct is situated posterior to and to the left of the esophagus. It is situated between the visceral and alar fascia. [5]
The mediastinal branches are numerous small vessels ... This article incorporates text in the public domain from page 600 of the 20th edition of Gray's Anatomy (1918)
Anatomy figure: 21:04-04 at Human Anatomy Online, SUNY Downstate Medical Center - "The position of the right and left vagus nerves, and sympathetic trunks in the mediastinum." Anatomy photo:43:15-0102 at the SUNY Downstate Medical Center - "The Female Pelvis: The Posterolateral Pelvic Wall"
Anatomy figure: 21:04-07 at Human Anatomy Online, SUNY Downstate Medical Center – "The position of the right and left vagus nerves, and sympathetic trunks in the mediastinum." Anatomy photo:40:10-0102 at the SUNY Downstate Medical Center – "Posterior Abdominal Wall: The Celiac Plexus"