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reproduction lab
na
25
Science
10th Grade
03/14/2011

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Term
amniotic sac
Definition
A thin membrane that completely surrounds the embryo and contains a protective fluid in which the embryo is immersed. Also called the amnion
Term
differentiaition
Definition
In developmental biology, cellular differentiation is the process by which a less specialized cell becomes a more specialized cell type.
Term
embryo
Definition
An embryo is a multicellular diploid eukaryote in its earliest stage of development, from the time of first cell division until birth, hatching, or germination.
Term
estrogen
Definition
Estrogens, oestrogens, or œstrogens, are a group of compounds named for their importance in the estrous cycle of humans and other animals, and functioning
Term
menstrual cycle
Definition
Term
semen
Definition
Semen is an organic fluid, also known as seminal fluid, that may contain spermatozoa. It is secreted by the gonads (sexual glands) and other sexual organs of male or female
Term
fallopian tube
Definition
Either of a pair of slender ducts through which ova pass from the ovaries to the uterus in the female reproductive system of humans and higher mammals.
Term
ferilization
Definition
Human fertilization is the union of a human egg and sperm, usually occurring in the ampulla of the uterine tube
Term
fetus
Definition
A fetus is a developing mammal or other viviparous vertebrate after the embryonic stage and before birth.
Term
gamete
Definition
A gamete is a cell that fuses with another cell during fertilization (conception) in organisms that reproduce sexually. In species that produce two morphologically distinct types of gametes, and in which each individual...
Term
menstruation
Definition
Menstruation is the shedding of the uterine lining (endometrium). It occurs on a regular basis in reproductive-age females of certain mammal species.
Term
seminal vesicles
Definition
 seminal vesicles or vesicular glands are a pair of simple tubular glands posteroinferior to the urinary bladder of male mammals.
Term
ovaries
Definition
  • The usually paired female or hermaphroditic reproductive organ that produces ova and, in vertebrates, estrogen and progesterone.

  • Term
     ovulation
    Definition
    A resource for those who are pregnant. Learn how to recognize the early signs of labor, and how you know you are experiencing labor symptoms.
    Term
    ovum
    Definition
     a haploid female reproductive cell or gamete. Both animals and embryophytes have ova. The term ovule is used for the young ovum of an animal, as well as the plant structure
    Term
    placenta
    Definition
    The placenta is an organ that connects the developing fetus to the uterine wall to allow nutrient uptake,
    Term
    progesterone
    Definition
    Progesterone also known as P4 is a C-21 steroid hormone involved in the female menstrual cycle, pregnancy and embryogenesis of humans and other species. Progesterone belongs to a class
    Term
    somatic cells
    Definition
    A somatic cell (diploid) is any biological cell forming the body of an organism; that is, in a multicellular organism, any cell other than a gamete, germ cell, gametocyte or undifferentiated stem cell. By contrast, gametes are cells that fuse during sexual reproduction, for organisms that reproduce sexually;...
    Term
    recombination
    Definition
    Recombination may refer to: Genetic recombination, the process by which genetic material is broken and joined to other genetic material; Carrier generation and recombination ...
    Term
    testosterone
    Definition
    Testosterone is a steroid hormone from the androgen group and is found in mammals, reptiles, birds, and other vertebrates. In mammals, testosterone is primarily secreted in the testes...
    Term
    testes
    Definition
    Part of the male reproductive system. The male gonads, testes, or testicles, begin their development high in the abdominal cavity, near the kidneys.
    Term
    uterus
    Definition
    The uterus is a hollow muscular organ located in the female pelvis between the bladder and rectum. The ovaries produce the eggs that travel through the fallopian tubes.
    Term
    zygote
    Definition
    he cell formed by the union of two gametes, especially a fertilized ovum before cleavage. The organism that develops from a zygote.
    Term
    umbilical cord
    Definition
    The flexible cordlike structure connecting a fetus at the abdomen with the placenta and containing two umbilical arteries and one vein that transport nourishment to the fetus
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