(n.) An oblong vermiform mass on the dorsal side of the testicle, composed of numerous convolutions of the excretory duct of that organ.
Example Sentences:
(1) The most actively proliferating region of the excurrent duct system is zone 3 of the epididymis, whereas the least active region is the ductuli efferentes.
(2) The epididymis appeared distended but without any visible sperms.
(3) The sulfhydryl group content of rat epididymal spermatozoa was similar from one cell to another, suggesting little sperm reabsorption in the epididymis.
(4) Corresponding hydrolysis of the water phase from incubation of epididymis from intact rats, demonstrated a marked quantitative difference.
(5) The ureter was connected to the epididymis of the testicle.
(6) Specific high affinity saturable binding proteins for oestradiol-17beta have been demonstrated in the cytoplasm of liver, adrenal, pituitary, prostate, epididymis and testis interstitial tissue of the rat.
(7) As for possible causes of reduced Leydig cell activity it was investigated whether the testis was (1) hypoplastic; (2) abnormally fused with the epididymis; (3) located in the abdomen; (4) or UT was associated with hypospadias.
(8) The acrosin inhibitors are localized in the mucosa cells of the cauda epididymis, the vas deferens, the seminal vesicles, the urethra and distinct glandular units of the prostate.
(9) An investigation of the tissue distribution of CMB-2 showed that the puberty, CMB-2 is secreted into the rete testis and accumulates in the epididymis in high concentration.
(10) The tail(s) of the epididymis was the most frequent site of lesion development in the mature rams (86.4%).
(11) Intratesticular testosterone and 5 alpha DHT concentrations were determined, and the testis and epididymis were evaluated for histological changes.
(12) These binding sites, localized in the circumference of the epididymal tubule and most concentrated within the proximal cauda, are present throughout the caput, corpus, and remaining cauda epididymis.
(13) Within the epididymis, regions closest to the testis develop soluble ACE activity about 1 week before those nearest to the vas deferens.
(14) The 8.2S form of the AR is also present in all three segments of the immature epididymis, with the highest concentration occurring in the caput.
(15) The influence of androgens on the male accessory glands of the rat was assessed in terms of changes in weight and of the specific activity of the mitochondrial enzymes, succinate dehydrogenase, glycerolphosphate dehydrogenase and pyruvate carboxylase, in the epididymis.
(16) The concentration of FN in soluble tissue extracts of epididymis was determined by enzyme-linked immunosorbent assay (ELISA).
(17) We report the use of a sensitive and specific enyzme-linked immunosorbent assay (ELISA) and polymerase chain reaction (PCR) to study the expression of protein D, a major androgen-regulated sperm-binding glycoprotein at the protein and mRNA level in different anatomical regions of the rat epididymis.
(18) The results are discussed in relation to protein secretion in the epididymis and to the role of antagglutinin in the gamete-interaction process.
(19) The primary amino acid sequence of 18.5 kDa androgen-dependent secretory proteins of the rat epididymis has been compared with protein data-base sequences.
(20) More ABP was endocytosed in proximal regions of the epididymis than any other protein studied.
Sperm
Definition:
(n.) The male fecundating fluid; semen. See Semen.
(n.) Spermaceti.
Example Sentences:
(1) A study revealed that the percentage of active sperm in semen 30 seconds after ejaculation was 10.3% when a nonoxynol 9 latex condom was used as opposed to 55.9% in a nonspermicidal condom.
(2) Here we report that sperm from psr males fertilizes eggs, but that the paternal chromosomes are subsequently condensed into a chromatin mass before the first mitotic division of the egg and do not participate in further divisions.
(3) Sperm specimens were obtained from 13 men participating in our in vitro fertilization program.
(4) Whether hen's egg yolk can be used as a sperm motility stimulant in the treatment of such conditions as asthenospermia and oligospermia is subjected for further study.
(5) Sperm were examined at 4.5 h, 8 to 9 h, and 24 to 25 h of incubation (37 degrees C, 5% CO2, and 95% air).
(6) Since the advance and return of sperm inside the tubes could facilitate the interaction of sperm with secretions participating in its maturation, the persistent infertility after vasectomy could be related to the contractile alteration that follows the excessive tubal distention.
(7) Peaks in the sperm index were preceded by 6 days with peaks in the serum testosterone concentration.
(8) Those without sperm, or with cloudy fluid, will require vasoepididymostomy under general or epidural anesthesia, which takes 4-6 hr.
(9) A sperm whale myoglobin gene containing multiple unique restriction sites has been constructed in pUC 18 by sequential assembly of chemically synthesized oligonucleotide fragments.
(10) Major limitations of the conventional sperm penetration assay are the inability to assess several aspects of sperm function (zona binding and penetration) and the absence of human ovulatory products known to influence fertilization.
(11) Couples applying to in vitro fertilization were admitted into this project when the sperm concentration was greater than 20 million per mL and motility greater than 30 per cent.
(12) To develop a new immunobead binding test (IBT) procedure that will detect sperm antibody in cervical mucus (CM), especially in very small samples of mucus.
(13) This procedure can quickly provide acrosome-reacted bull sperm for use with various in vitro fertilization procedures and for assessment of male fertility.
(14) Males were then sacrificed and organ weights, testicular spermatid counts, and cauda epididymal sperm count and sperm morphology were obtained.
(15) The freezing procedure increased sperm motility in approximately 30% of samples from both animals.
(16) The time of sperm penetration in the mouse eggs, however, was delayed for one-half to one hour when ejaculated sperm were used.
(17) The epididymis appeared distended but without any visible sperms.
(18) Liposomes of PC10 rapidly destroyed sperm motility while PC12 acrosome-reacted sperm remained motile for several h. Liposomes of PC with greater than or equal to 14-carbon fatty acyl chains had no effect on the AR or motility of sperm.
(19) Additionally, the data demonstrate that hamster sperm can remain viable for several hours after becoming immotile, and that many of the immotile sperm are capable of being reactivated.
(20) Heterogeneity in thiol content of sperm within individual samples was also observed.