| annular ligaments of the trachea | The fibrous membranes that connect adjacent tracheal cartilages. Synonym: ligamenta annularia trachealia, ligamenta trachealia. (05 Mar 2000) |
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| bifurcation of trachea | The division of the trachea into the right and left main bronchi; it occurs at the level of the fifth or sixth thoracic vertebral body and is marked internally by the presence of a carina or keel-like ridge between the diverging bronchi. Synonym: bifurcatio tracheae. (05 Mar 2000) |
| carina of trachea | The ridge separating the openings of the right and left main bronchi at their junction with the trachea. Synonym: carina tracheae. (05 Mar 2000) |
| membranous wall of trachea | The part of the tracheal wall posteriorly that is not reinforced by tracheal cartilages. Synonym: paries membranaceus tracheae. (05 Mar 2000) |
| muscular coat of trachea | Muscular layer of the tracheal wall. Synonym: tunica muscularis tracheae. (05 Mar 2000) |
| saber-sheath trachea | A type of tracheal collapse seen in chronic obstructive pulmonary disease in which there is an increase in the outer posterior tracheal dimension with side-to-side narrowing involving the lower 2/3 of the trachea. (05 Mar 2000) |
| scabbard trachea | <radiology> Narrowing of the trachea posteriorly, best seen on lateral view of chest, inlet view, caused by anterior neck mass (e.g. Goiter), may cause stridor, dyspnea (12 Dec 1998) |
| trachea | The windpipe. A fibrocartilaginous tube lined with mucous membrane passing from the larynx to the bronchi. (27 Sep 1997) |
| Abbott's tube | A tube with two lumens, one ending in a small collapsible balloon and the other in a metallic tip with numerous perforations; used for intestinal decompression. Synonym: Abbott's tube. (05 Mar 2000) |
| abdominal ostium of uterine tube | The fimbriated or ovarian extremity of an oviduct. Synonym: ostium abdominale tubae uterinae. (05 Mar 2000) |
| air cells of auditory tube | Occasional small air cells in the inferior wall of the auditory tube, near the tympanic orifice, communicating with the tympanic cavity. Synonym: cellulae pneumaticae tubae auditivae, air cells of auditory tube. (05 Mar 2000) |
| air tube | The trachea, or a bronchus or any of its branches conveying air to the lungs. (05 Mar 2000) |
| alar lamina of neural tube | The dorsal division of the lateral walls of the neural tube in the embryo; it gives rise to neurons relaying afferent impulses to higher centres; in the adult such neurons compose the sensory nuclei of the spinal cord and brainstem. Synonym: lamina alaris, alar plate of neural tube, dorsolateral plate of neural tube, lamina dorsalis, wing plate. (05 Mar 2000) |
| alar plate of neural tube | The dorsal division of the lateral walls of the neural tube in the embryo; it gives rise to neurons relaying afferent impulses to higher centres; in the adult such neurons compose the sensory nuclei of the spinal cord and brainstem. Synonym: lamina alaris, alar plate of neural tube, dorsolateral plate of neural tube, lamina dorsalis, wing plate. (05 Mar 2000) |
| ampulla of uterine tube | The wide portion of the uterine (fallopian) tube near the fimbriated extremity; it has a complexly folded mucosa with a columnar epithelium of mostly ciliated cells between which are secretory cells. Synonym: ampulla tubae uterinae. (05 Mar 2000) |