| BALT | broncho-alveolar lavage fluid; bronchus-associated lymphoid tissue |
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| BR | barrier reared [experimental animals]; baseline recovery; bathroom; bed rest; bedside rounds; biliru... |
| CTSS | cathepsin S; closed tracheal suction system |
| ETC | electron transport chain; esophageal tracheal combitude; estimated time of conception |
| LB | lamellar body; large bowel; left breast; left bronchus; left bundle; left buttock; leiomyoblastoma; ... |
| tracheal branches | Branches to the trachea. Nomina Anatomica lists tracheal branches of 1) inferior thyroid artery (rami tracheales arteriae thyroideae inferioris ); and 2) recurrent laryngeal nerve (rami tracheales nervi laryngei recurrentis ). Synonym: rami tracheales. (05 Mar 2000) |
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| tracheal cartilages | The 16 to 20 incomplete rings of hyaline cartilage forming the skeleton of the trachea; the rings are deficient posteriorly for from one-fifth to one-third of their circumference. Synonym: cartilagines tracheales, tracheal ring. (05 Mar 2000) |
| tracheal fenestration | A surgical procedure to create an epithelialised mucocutaneous opening from the neck into the trachea. (05 Mar 2000) |
| tracheal fistula | A form of fistula colli congenita. (05 Mar 2000) |
| tracheal glands | Numerous tubuloalveolar mixed glands located principally in the submucosa of the trachea; they open into the tracheal lumen through short ducts. Synonym: glandulae tracheales. (05 Mar 2000) |
| tracheal intubation | Passage of a tube through the nose, mouth, or a tracheotomy into the trachea for maintenance of patency of the airway. (05 Mar 2000) |
| tracheal lymph nodes | Nodes along the sides of the trachea in the neck and in the posterior mediastinum; receive drainage of superior (and inferior) tracheobranchial (nodes, trachea and oesophagus); drain to bronchomediastinal lymphatic trunk(s), thoracic duct. Synonym: nodi lymphatici paratracheales, tracheal lymph nodes. (05 Mar 2000) |
| tracheal mucosa | The inner mucous layer of the trachea. Synonym: tunica mucosa tracheae. (05 Mar 2000) |
| tracheal ring | The 16 to 20 incomplete rings of hyaline cartilage forming the skeleton of the trachea; the rings are deficient posteriorly for from one-fifth to one-third of their circumference. Synonym: cartilagines tracheales, tracheal ring. (05 Mar 2000) |
| tracheal triangle | The triangle bounded by the sternocleidomastoid muscle, the superior belly of the omohyoid muscle, and the anterior midline of the neck; the infrahyoid muscles occupy most of it. Synonym: trigonum musculare, trigonum omotracheale, inferior carotid triangle, omotracheal triangle, tracheal triangle. (05 Mar 2000) |
| tracheal tube | A flexible tube inserted nasally, orally, or through a tracheotomy into the trachea to provide an airway, as in tracheal intubation. Synonym: endotracheal tube, intratracheal tube. (05 Mar 2000) |
| tracheal tug | A downward pull of the trachea, manifested by a downward movement of the thyroid cartilage, synchronous with the action of the heart and symptomatic of aneurysm of the aortic arch; the sign is elicited most easily by drawing the cricoid cartilage upward with the thumb and forefinger while the patient sits with head thrown back and mouth closed, a jerky type of inspiration seen when the intercostal muscles and the sternocostal parts of the diaphragm are paralysed by deep general anaesthesia or muscle relaxants; due to the unopposed action of the crura pulling on the dome of the diaphragm and thence on the pericardium, lung roots, and tracheobronchial tree during each inspiration. (05 Mar 2000) |
| tracheal ulceration | Erosion of the tracheal mucous membrane with, in some cases, exposure of the rings, at the site at which a cuffed tracheostomy tube has been present for some time. (05 Mar 2000) |
| tracheal veins | Several small venous trunks from the trachea, emptying into the brachiocephalic veins or the superior vena cava. Synonym: venae tracheales. (05 Mar 2000) |
| tracheal wall stripe | On a chest radiograph, the linear opacity between air in the trachea and in the right upper lobe. (05 Mar 2000) |