| LDCT | late distal cortical tubule |
|---|---|
| LPCT | late proximal cortical tubule |
| MCT | manual cervical traction; mean cell thickness; mean cell threshold; mean circulation time; mean corp... |
| PCT | peripheral carcinoid tumor; plasma clotting time; plasmacrit test; plasmacytoma; polychlorinated tri... |
| SBS | shaken baby syndrome; short bowel syndrome; sick building syndrome; sinobronchial syndrome; small bo... |
| convoluted tubule of kidney | The highly convoluted segments of the nephron in the renal labyrinth comprising the proximal convoluted tubule, which leads from Bowman's capsule to the descending limb of Henle's loop, and the distal convoluted tubule, which leads from the ascending limb of Henle's loop to the collecting tube. Synonym: tubulus renalis contortus, Ferrein's tube, tubulus contortus. (05 Mar 2000) |
|---|---|
| pronephric tubule | An excretory unit of the pronephros, present only in vestigial form in human embryos. (05 Mar 2000) |
| segmental tubule | An excretory tubule of the mesonephros. Synonym: segmental tubule. (05 Mar 2000) |
| seminiferous tubule | <anatomy> In the testicles, the network of tubes where sperm cells are formed. (09 Oct 1997) |
| seminiferous tubule dysgenesis | A disorder in which the seminiferous tubules exhibit an abnormal cytoarchitecture and extensive hyalinization; the testes are small, and few spermatozoa are formed; the body habitus may be eunuchoid, and gynaecomastia may be present; urinary gonadotropin output is usually high, and the incidence of mental deficiency and illness increased; sex chromatin may be male or female, and androgen secretion ranges from subnormal to normal. It is a constant feature of (and is often used synonymously with) Klinefelter's syndrome. Synonym: germinal aplasia. (05 Mar 2000) |
| spiral tubule | The segment of urinary tubule coming next after the proximal convoluted tubule. (05 Mar 2000) |
| discharging tubule | A urinary tubule formed by the union of several collecting tubule's and terminating as a papillary duct. (05 Mar 2000) |
| transverse tubule | <cell biology> Invagination of the plasma membrane (sarcolemma) of striated muscle that lies between two tubular portions of the endoplasmic (sarcoplasmic) reticulum to form a triad of membrane profiles adjacent to the A band/I band junction in some cases, in other cases to the Z disc, of the resting sarcomere. Depolarisation of the T tubule membrane triggers the release of calcium from the sarcoplasmic reticulum and eventually muscle contraction. (18 Nov 1997) |
| T tubule | <cell biology> Invagination of the plasma membrane (sarcolemma) of striated muscle that lies between two tubular portions of the endoplasmic (sarcoplasmic) reticulum to form a triad of membrane profiles adjacent to the A band/I band junction in some cases, in other cases to the Z disc, of the resting sarcomere. Depolarisation of the T tubule membrane triggers the release of calcium from the sarcoplasmic reticulum and eventually muscle contraction. (18 Nov 1997) |
| tubule | 1. A small pipe or fistular body; a little tube. 2. <anatomy> A minute tube lined with glandular epithelium; as, the uriniferous tubules of the kidney. Origin: F. Tubule, or L. Tubulus, dim. Of tubus a tube, a pipe. Source: Websters Dictionary (01 Mar 1998) |
| uriniferous tubule | The functional unit of the kidney, composed of a long convoluted portion (nephron) and an intrarenal collecting duct. (05 Mar 2000) |
| anterior border of testis | An imaginary convex line demarcating the lateral and medial surfaces. Synonym: margo anterior testis. (05 Mar 2000) |
| appendix of the testis | A vesicular nonpedunculated structure attached to the cephalic pole of the testis; a vestige of the cephalic end of the paramesonephric (mullerian) duct. Synonym: appendix testis, appendix of the testis, nonpedunculated hydatid, ovarium masculinum, sessile hydatid. (05 Mar 2000) |
| appendix testis | A small solid projection of tissue on the outer surface of the testis which is a remnant of the embryologic mullerian duct. (12 Dec 1998) |
| blood-testis barrier | The membrane in the testis that separates sperm from the bloodstream. (09 Oct 1997) |