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reproduc/development

reproduction/development

TermDefinition
sperm produced by a male organism that unites with the egg of a female organism forming a zygote. Supplement.
ova the female reproductive cell or gamete of animals, which is capable of developing, usually only after fertilization, into a new individual.
gonads pertain to the anatomical part of the body where sex cells (gametes) are synthesized.
gametes re the cells used during sexual reproduction to produce a new individual organism or zygote.
testes produce and store sperm and are also the body's main source of male hormones, such as testosterone.
ovaries the female gonad or reproductive gland, in which the ova and the hormones that regulate female secondary sex characteristics develop.
testosterone a sex hormone produced by the testes that encourages the development of male sexual characteristics, stimulates the activity of the male secondary sex characteristics, and prevents changes in them following castration.
estrogen are hormones that are important for sexual and reproductive development, mainly in women.
progesterone that is secreted by the corpus luteum to prepare the endometrium for implantation and later by the placenta during pregnancy to prevent rejection of the developing embryo or fetus
fertilization A process in sexual reproduction that involves the union of male (sperm) and female (ovum) gametes (each with a single, haploid set of chromosomes) to produce a diploid zygote
zygote The cell formed by the union of a male sex cell (a sperm) and a female sex cell (an ovum)
menopause the time when there has been no menstrual periods for 12 consecutive months and no other biological or physiological cause can be identified.
fallopian tube/oviduct Either of a pair of slender tubes from each ovary to the side of the fundus of the uterus, through which the ova pass
uterus A hollow muscular organ consisting of a body, fundus, isthmus, and cervix located in the pelvic cavity of female mammals, in which the fertilized egg implants and develops into the fetus.
implantation refers specifically to the attachment of the fertilized egg to the uterine lining, which occurs approximately 6 or 7 days after conception
placenta is a flattened circular organ in the uterus of pregnant mammals that nourishes and maintains the fetus through the umbilical cord.
ovulation The discharge of a secondary oocyte from a vesicular follicle of the ovary. The expulsion of an ovum from the ovary (usually midway in the menstrual cycle)
embryo an organism in early stages of development, before hatching from an egg.
semen The slimy whitish fluid comprised of sperm cells and secretions from the sexual glands released at orgasm through the male reproductive organ
The normal process by which a less specialized cell develops or matures to become more distinct in form and function.
Created by: nahomi2775