| RTA | ray tracing algorithm; renal tubular acidosis; reverse transcriptase assay; road traffic accident |
|---|---|
| RTAD | renal tubular acidification defect |
| RTC | random control trial; rape treatment center; renal tubular cell; residential treatment center; retur... |
| RTD | renal tubular defect; routine test dilution |
| RTN | renal tubular necrosis |
| terminal filum | A long, slender connective tissue (pia mater) strand extending from the extremity of the medullary cone to the internal aspect of the spinal dural sac (filum terminale internum); stout strands of connective tissue attaching the spinal dural sac to the coccyx (filum terminale externum), commonly called the coccygeal ligament. Synonym: filum terminale, nervus impar, terminal thread. (05 Mar 2000) |
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| terminal ganglion | One of the cells located along the terminal nerves, one of the scattered postganglionic autonomic neurons located in or close to the wall of the organ innervated; they are usually parasympathetic. Synonym: ganglion terminale. (05 Mar 2000) |
| terminal haematuria | The presence of blood only in the last fraction of voided urine, usually indicating a prostatic source of bleeding. (05 Mar 2000) |
| terminal hair | A mature pigmented, coarse hair. (05 Mar 2000) |
| terminal hinge position | The mandibular hinge position from which further opening of the mandible would produce translatory rather than hinge movement. (05 Mar 2000) |
| terminal ileitis | Crohn's disease, a chronic inflammatory disease of the intestine involving only the end of the small intestine (the terminal ileum). Crohn's disease affects primarilythe small and large intestines but which can occur anywhere in the digestive system between the mouth and the anus. Named after burrill crohn who described the disease in 1932. The disease often strikes persons in their teens or early twenties. It tends to be chronic, recurrent with periods of remission and exacerbation. In the early stages, it causes small scattered shallow crater-like areas (erosions) called apthous ulcers in the inner surface of the bowel. With time, deeper and larger ulcers develop, causing scarring and stiffness of the bowel and the bowel becomes increasingly narrowed, leading to obstruction. Deep ulcers can puncture holes in the bowel wall, leading to infection in the abdominal cavity (peritonitis) and in adjacent organs abdominal pain, diarrhoea, vomiting, fever, and weight loss can be symptoms. Crohn's disease can be associated with reddish tender skin nodules, and inflammation of the joints, spine, eyes, and liver. Diagnosis is by barium enema, barium X-ray of the small bowel, and colonoscopy. Treatment includes medications for inflammation, immune suppression, antibiotics, or surgery. (12 Dec 1998) |
| terminal ileus | Obstruction of the lower part of the small bowel. (05 Mar 2000) |
| terminal infection | An acute infection, commonly pneumonic or septic, occurring toward the end of any disease and often the cause of death. Synonym: agonal infection. (05 Mar 2000) |
| terminal jaw relation record | A record of the relationship of the mandible to the maxillae made at the vertical relation of occlusion and at the centric position. (05 Mar 2000) |
| terminal leukocytosis | One that occurs in a person just prior to death, especially in one who has a "slow death." Synonym: agonal leukocytosis. (05 Mar 2000) |
| terminal line | An oblique ridge on the inner surface of the ilium and continued on the pubis, which forms the lower boundary of the iliac fossa; it separates the true from the false pelvis. Synonym: iliopectineal line, terminal line. (05 Mar 2000) |
| terminal nerve corpuscles | Generic term denoting specialised encapsulated nerve endings such as the articular, bulboid, genital, lamellated, and tactile corpuscles, and the tactile meniscus. Synonym: corpuscula nervosa terminalia. (05 Mar 2000) |
| terminal nerves | Delicate plexiform nerve strands passing parallel and medial to the olfactory tracts, distributing peripherally with the olfactory nerves and passing centrally into the anterior perforated substance; they are considered to have an autonomic function but the exact nature of this is unknown. Synonym: terminal nerves. (05 Mar 2000) |
| terminal notch of auricle | A deep notch separating the lamina tragi and cartilage of the external auditory meatus from the main auricular cartilage, the two being connected below by the isthmus. Synonym: incisura terminalis auris, auricular notch. (05 Mar 2000) |
| terminal nuclei | Nuclei terminales, collective term indicating those nerve cell groups in the rhombencephalon and spinal cord in which the afferent fibres of the spinal and cranial nerves terminate. Synonym: nuclei terminationis, secondary sensory nuclei. (05 Mar 2000) |