Referring to an as yet informal agglomeration of fertility medicine, obstetrics, gynecology and some aspects of urology and endocrinology as they relate to normal and pathological processes and conditions of human reproduction in either men or women
(Tıp, İlaç) Reproductive success is defined as the passing of genes onto the next generation in a way that they too can pass those genes on. In practice, this is often a tally of the number of offspring produced by an individual. A more correct definition, which incorporates inclusive fitness, is the relative production of fertile offspring by a genotype. For example, the offspring produced as a result of normal mating are an example of reproductive success, because they too can pass their genetic material on to the next generation. Alternatively, the birth of a mule as a result of the mating of a horse and a donkey is not an example of reproductive success because the mule is sterile and thus not able to continue the germ line
In animals, any activity directed toward perpetuation of a species. Sexual reproduction, the most common mode, occurs when a female's egg is fertilized by a male's sperm. The resulting unique combination of genes produces genetic variety that contributes to a species' adaptability. The stages of approach, identification, and copulation are well developed to avoid predators and the wastage of eggs and sperm. Most one-celled and some more-complex organisms reproduce asexually. See also courtship behaviour
Organ system by which humans reproduce. In females, the ovaries sit near the openings of the fallopian tubes, which carry eggs from the ovaries to the uterus. The cervix extends from the lower end of the uterus into the vagina, whose opening, as well as that of the urethra (see urinary system), is covered by four folds of skin (the labia); the clitoris, a small erectile organ, is located where the labia join in front. The activity of the ovaries and uterus goes through a monthly cycle of changes (see menstruation) throughout the reproductive years except during pregnancy and nursing. In males, the testes lie in a sac of skin (the scrotum). A long duct (the vas deferens) leads from each testis and carries sperm to the ejaculatory ducts in the prostate gland; these join the urethra, which continues through the penis. In the urethra, sperm mixes with secretions from the seminal vesicles, prostate gland, and Cowper gland to form semen. In early embryos, the reproductive systems are undetermined. By birth the organs appropriate to each sex have typically developed but are not functioning. They continue to grow, and at puberty their activity increases and maturation occurs, enabling sexual reproduction
20 dilde online sözlük. 20 milyondan fazla sözcük ve anlamı üç farklı aksanda dinleme seçeneği. Cümle ve Videolar ile zenginleştirilmiş içerik. Etimoloji, Eş ve Zıt anlamlar, kelime okunuşları ve günün kelimesi. Yazım Türkçeleştirici ile hatalı Türkçe metinleri düzeltme. iOS, Android ve Windows mobil platformlarda online ve offline sözlük programları. Sesli Sözlük garantisinde Profesyonel çeviri hizmetleri. İngilizce kelime haznenizi arttıracak kelime oyunları. Ayarlar bölümünü kullarak çevirisini görmek istediğiniz sözlükleri seçme ve aynı zamanda sözlüklerin gösterim sırasını ayarlama imkanı. Kelimelerin seslendirilişini otomatik dinlemek için ayarlardan isteğiniz aksanı seçebilirsiniz.