| Fd | the amino-terminal portion of the heavy chain of an immunoglobulin molecule; ferredoxin |
|---|---|
| FTIR | Fourier-transformed infrared; functional terminal innervation ratio |
| LRT | local radiation therapy; long terminal repeat; lower respiratory tract |
| LTR | location transactivating region; long terminal repeat |
| MET | maximal exercise test; metabolic equivalent of the task; metastasis, metastatic; methionine; midexpi... |
| terminal transferase | <enzyme> An enzyme adds a particular nucleotide to the 3' end of DNAstrands. (09 Oct 1997) |
|---|---|
| terminal transferases | Enzymes that covalently add nucleotides to the 3' end of polynucleic acids; e.g., DNA nucleotidylexotransferase. (05 Mar 2000) |
| terminal vein | <anatomy, vein> A long vein passing forward in the groove between the thalamus and caudate nucleus, covered by the lamina affixa, receiving the transverse caudate veins along its lateral side, and joining at the caudal wall of Monro's foramen with the choroidal vein and vein of septum pellucidum to form the internal cerebral vein. Synonym: vena terminalis, vena thalamostriata superior, terminal vein, vein of corpus striatum. (05 Mar 2000) |
| terminal ventricle | A dilation of the central canal of the spinal cord at the tip of the medullary cone. Synonym: ventriculus terminalis. (05 Mar 2000) |
| terminal web | <cell biology> The cytoplasmic region at the base of microvilli in intestinal epithelial cells, a region rich in microfilaments from the microvillar core and from adherens junctions, in myosin and in other proteins characteristic of an actomyosin motor system. (13 Jan 1998) |
| termino-terminal anastomosis | An operation by which the central end of an artery is connected with the peripheral end of the corresponding vein, and the peripheral end of the artery with the central end of the vein. (05 Mar 2000) |
| functional terminal innervation ratio | The number of muscle fibres divided by the number of axons that innervate them. (05 Mar 2000) |
| long-terminal repeat | <molecular biology> Identical DNA sequences, several hundred nucleotides long, found at either end of transposons and the proviral DNA, formed by reverse transcription of retroviral RNA. They are thought to have an essential role in integrating the transposon or provirus into the host DNA. Long terminal repeats have inverted repeats, that is, sequences close to either end are identical when read in opposite directions. In proviruses the upstream long-terminal repeat acts as a promoter and enhancer and the downstream long-terminal repeat as a polyadenylation site. Acronym: LTR (15 Nov 1997) |
| long terminal repeat sequences | Regions of the RNA genome associated with regulation, integration, and expression of retroviruses. (05 Mar 2000) |
| acetabular fossa | A depressed area in the floor of the acetabulum superior to the acetabular notch. Synonym: fossa acetabuli. (05 Mar 2000) |
| amygdaloid fossa | The depression between the palatoglossal and palatopharyngeal arches occupied by the palatine tonsil. Synonym: fossa tonsillaris, amygdaloid fossa, sinus tonsillaris. (05 Mar 2000) |
| anconal fossa | A hollow on the dorsum of the distal end of the humerus, just above the trochlea, in which the olecranon process of the ulna rests when the elbow is extended. Synonym: fossa olecrani, anconal fossa. (05 Mar 2000) |
| anterior cranial fossa | The portion of the internal base of the skull, anterior to the sphenoidal ridges and limbus, in which the frontal lobes of the brain rest. Synonym: fossa cranii anterior, anterior cranial base. (05 Mar 2000) |
| articular fossa of temporal bone | A deep hollow in the squamous portion of the temporal bone at the root of the zygoma, in which rests the condyle of the mandible. Synonym: cavitas glenoidalis, fossa mandibularis, articular fossa of temporal bone, glenoid cavity, glenoid fossa, glenoid surface. (05 Mar 2000) |
| axillary fossa | <anatomy> The underarm area. (16 Dec 1997) |