Thoracic-artery
noun, Anatomy.
1.
any of several arteries that distribute blood to the muscles and organs of the thorax: used as a replacement artery in coronary bypass surgery.
thoracic artery n.
The internal mammary artery, with origin in the subclavian artery and bifurcations to the musculophrenic and superior epigastric arteries; internal thoracic artery.
The external mammary artery, with origin in the axillary artery and distribution to the muscles of the chest and mammary gland; lateral thoracic artery.
An artery with origin in the axillary artery, with distribution to the muscles of the chest, and with anastomoses to the branches of the suprascapular, internal thoracic, and thoracoacromial arteries; superior thoracic artery.
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- Thoracic cage
thoracic cage n. The part of the skeleton enclosing the thorax, consisting of the thoracic vertebrae, ribs, costal cartilages, and sternum.
- Thoracic cardiac nerve
thoracic cardiac nerve n. Any of the branches from the second to the fifth segments of the thoracic sympathetic trunk that pass forward to enter the cardiac plexus.
- Thoracic cavity
thoracic cavity n. The space within the walls of the chest, bounded below by the diaphragm and above by the neck, and containing the heart and the lungs.
- Thoracic-duct
noun, Anatomy. 1. the main trunk of the lymphatic system, passing along the spinal column in the thoracic cavity, and conveying a large amount of lymph and chyle into the venous circulation. thoracic duct noun 1. the major duct of the lymphatic system, beginning below the diaphragm and ascending in front of the spinal column […]
- Thoracic ganglion
thoracic ganglion n. Any of 11 or 12 ganglions at the level of the head of each rib on either side that with the connecting nerve cords constitute the thoracic portion of the sympathetic trunk.