(a.) Having powers of self-motion, though unconscious; as, the motile spores of certain seaweeds.
(a.) Producing motion; as, motile powers.
Example Sentences:
(1) The proportion of motile spermatozoa decreased with time at the same rate when samples were prepared in either HEPES or phosphate buffers.
(2) All of the strains examined were motile and hemolytic and produced lipase and liquid gelatin.
(3) 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.
(4) Forty-five enteropathogenic (enteropathogenic Escherichia coli-like) strains isolated in commercial rabbit farms were subdivided into four biotypes with the help of six carbohydrate fermentation tests, ornithine decarboxylase tests, and motility tests.
(5) 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.
(6) Following thawing, the initial motility index (MI) scores of mf cryopreserved by either method were not significantly different from untreated controls; however, over a period of 15 days in culture the MI scores of both cryopreserved groups showed a small but significant overall decline, with the methanol technique producing the lowest scores.
(7) Spontaneous lipid peroxidation in washed human spermatozoa was induced by aerobic incubation at 32 C and measured by malonaldehyde production; loss of motility during the incubation was determined simultaneously.
(8) The freezing procedure increased sperm motility in approximately 30% of samples from both animals.
(9) 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.
(10) In the present study, we have compared the phosphorylation state of the fibronectin receptor in motile neural crest and somitic cells, in stationary somitic cells, and in Rous-sarcoma virus transformed-chick embryo fibroblasts, using immunoprecipitation following metabolic labeling.
(11) Gallbladder mucosal net fluid transport and motility were measured in vivo by a continuous perfusion technique in the anaesthetized cat.
(12) The test is based on the ability of larvae to freely migrate through selected mesh sizes of nylon sieves and the reduced ability of larvae to migrate after preincubation with, and in the presence of, substances that inhibit or reduce larval motility.
(13) The morphological process of spermatogenesis is largely unaffected and motile sperm are produced, but meiocyte aneuploidy is common.
(14) Flow cytometry-derived parameters were essentially time-dependent whereas motility characteristics were primarily temperature-dependent.
(15) There were associated abnormalities of small intestinal morphology, motility, and absorptive function.
(16) The latter were shown to serve Hexamita organisms which exhibit exclusive motility.
(17) It was hypothesized that increased intestinal motility may disturb the absorption of fats and cause the observed difference at least in the Finnish population.
(18) These characteristics are consistent with the proposal that cytoplasmic dynein plays a universal role in retrograde organelle motility.
(19) The fibrosis of the gastric wall with motility disturbances, and the diminution of acid and pepsin production from damage to the glandular elements, would weigh against the addition of a vagotomy to the drainage procedure.
(20) The role of male factor with respect to sperm morphology, progressive motility, and density is studied under in vitro conditions.
Spermatozoid
Definition:
(n.) The male germ cell in animals and plants, the essential element in fertilization; a microscopic animalcule-like particle, usually provided with one or more cilia by which it is capable of active motion. In animals, the familiar type is that of a small, more or less ovoid head, with a delicate threadlike cilium, or tail. Called also spermatozoon. In plants the more usual term is antherozoid.
Example Sentences:
(1) The spermatozoid content of DNA was analyzed using the Feulgen staining method and the relative content of histone proteins by the Alfert and Geschwind staining method.
(2) The presence of antibodies against spermatozoids was considered as an important factor associated with AIDS and previous states of the AIDS detected by OKT8 greater than 30% of lymphocytes.
(3) The authors analyzed in 196 sterile women the ovulation mucus by the microagglutination test and found a high anti-spermatozoidal activity in 24 (12%) women.
(4) The predominant cytologic features were granulomatous inflammation (nontuberculous and non-foreign body) and spermatozoids (intrahistiocytic or as extracellular spermatic debris).
(5) The Hynie method was observed to have some advantages over other methods: it is easy to apply and provides exact data which are useful in determining spermatozoidal deficiencies in sterility cases.
(6) In animals of both subgroups the spermatozoid concentration in the epididymal suspension was lowered and the relative content of spermatozoids with morphologically abnormal heads in suspension smears was increased.
(7) The microtubules on the outside of the nucleus of the mature spermatozoid of Pteridium form a complex with the envelope, and the perinuclear space is eliminated.
(8) A relationship between transferrin and spermatozoid concentration in sperm was shown.
(9) This membrane also undergoes growth, the outer layer extending into the cytoplasm and surrounding spermatozoid mitochondria.
(10) This layer may be important in preventing other spermatozoids from fusing with the egg.
(11) Similarly, the incubation of spermatozoids obtained from the tail of the epididymis with CPhM causes them to produce only 7% fertilization, instead of the normal rate of 80%.
(12) The prognosis depends on the alterations seen on the sperm count parameters; but there is no threshold figure under which no pregnancy is observed (except for zero), concerning the count, the gradual mobility or the morphology of the spermatozoids.
(13) The quantitative yield is given for DNA and RNA preparations from the mentioned objects, the molecular weight of roach and bream DNA, nucleotide composition of roach DNA as well as fractional composition of bream spermatozoids RNA are determined.
(14) The ultrastructure of the mature spermatozoid of Marsilea vestita was studied after its release from the microspore and prior to its penetration of the egg.
(15) After spermatozoid penetration, a new extracellular layer appears above the surface of the egg, beginning in the region of sperm penetration and spreading across the top of the egg.
(16) Changes in the nucleus and the cytoplasm of both the spermatozoids and spermatides were revealed at the early stages of their formation.
(17) Circadian rhythm of activity of 3H-leucine incorporation into antheridial cells of Chara vulgaris, in natural photoperiod was compared with changes in mitotic activity of antheridial filament cells which form spermatozoids.
(18) Any abnormality often severely compromises the ability to fertilize spermatozoids.
(19) The various criteria of the sperm count then examined, emphasizing the importance of studying the morphology, on optical as well as electron microscopy, since it is the spermatozoid's morphology as well as their mobility that differentiate fertile man from infertile ones.
(20) is fertilized by small biflagellate spermatozoids and both monoecious and dioecious species are found.