| LSI | large-scale integration; life satisfaction index; lumbar spine index |
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| LSS | life support station; lumbosacral spine |
| PASSOR | Physiatric Association for Spine, Sports, and Occupational Rehabilitation |
| PIIS | posterior inferior iliac spine |
| PNS | paraneoplastic syndrome; parasympathetic nervous system; partial nonprogressive stroke; peripheral n... |
| oesophageal branches of the thoracic aorta | Branches arising directly from the anterior aspect of the portion of the thoracic aorta adjacent to the oesophagus, by which most of the oesophagus is supplied. Synonym: rami oesophageales aortae thoracicae. (05 Mar 2000) |
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| thoracic | <anatomy> Pertaining to or affecting the chest. Origin: L. Thoracicus, Gr. Thorakikos (18 Nov 1997) |
| thoracic aorta | The part of the descending aorta that supplies structures as far down as the diaphragm. Synonym: pars thoracica aortae, aorta thoracica, thoracic part of aorta. (05 Mar 2000) |
| thoracic aortic aneurysm | <radiology> Normal size: 4-5 cm, most aneurysms rupture when more than 10 cm, mean age: 65 years; M:F = 3:1 associated with: hypertension, coronary artery disease, abdominal aortic aneurysm symptoms: substernal, back, shoulder pain (25%), superior vena cava syndrome, dysphagia, stridor, dyspnea, hoarseness see: aortic aneurysm (12 Dec 1998) |
| thoracic aortic plexus | An autonomic plexus surrounding the thoracic aorta and passing with it through the aortic opening in the diaphragm, to become continuous with the abdominal aortic plexus. Synonym: plexus aorticus thoracicus. (05 Mar 2000) |
| thoracic arteries | Arteries originating from the subclavian or axillary arteries and distributing to the anterior thoracic wall, mediastinal structures, diaphragm, pectoral muscles, mammary gland and the axillary aspect of the chest wall. (12 Dec 1998) |
| thoracic axis | <anatomy, artery> Origin, axillary; distribution, muscles and skin of shoulder and upper chest; anastomoses, branches of superior thoracic, internal thoracic, lateral thoracic, posterior and anterior circumflex humeral, and suprascapular. Synonym: arteria thoracoacromialis, acromiothoracic artery, thoracic axis, thoracoacromial trunk. (05 Mar 2000) |
| thoracic cage | The skeleton of the thorax consisting of the thoracic vertebrae, ribs, costal cartilages, and sternum. Synonym: compages thoracis, skeleton thoracicus. (05 Mar 2000) |
| thoracic cardiac branches of vagus nerve | <anatomy, nerve> Branches of vagus nerve to the cardiac plexus which branch from the vagi at thoracic levels, conducting presynpatic parasympathetic fibres to, and reflex afferent fibres from, the cardiac plexus. Synonym: rami cardiaci thoracici nervi vagi. (05 Mar 2000) |
| thoracic cardiac nerves | Part of the cardiopulmonary splanchnic nerves from the second to fifth segments of the thoracic sympathetic trunk that pass medially and anteriorly to enter the cardiac plexus; they convey postsynaptic sympathetic fibres to, and visceral afferent (pain) fibres from, the heart. Synonym: nervi cardiaci thoracici, upper thoracic splanchnic nerves. (05 Mar 2000) |
| thoracic cavity | The space within the thoracic walls, bounded below by the diaphragm and above by the neck. Synonym: cavitas thoracis, cavum thoracis. (05 Mar 2000) |
| thoracic choke | Obstruction by a foreign body in the thoracic portion of the oesophagus of an animal. (05 Mar 2000) |
| thoracic compliance | That portion of total ventilatory compliance ascribable to compliance of the thoracic cage. (05 Mar 2000) |
| thoracic duct | <anatomy> The major efferent lymph duct into which lymph from most of the peripheral lymph nodes drains. Recirculating lymphocytes that have left the circulation in the lymph node return to the blood through the thoracic duct. (18 Nov 1997) |
| thoracic fistula | A fistula, either blind or complete, opening on the wall of the thorax or abdomen. Synonym: thoracic fistula. (05 Mar 2000) |