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Animal Health
Animal Reproduction
| Term | Definition |
|---|---|
| Gonadotropin-Releasing Hormone (GnRH) | Hormone produced in the hypothalamus that when released can initiate the release of follicle-stimulating hormone or luteinizing hormone in the male or female |
| Follicle-Stimulating Hormone (FSH) | Hormone produced in the anterior pituitary that when released encourages follicular development and spermatogenesis |
| Follicle | Structure on the ovary within which the oocyte develops |
| Estrogen | Hormone found in both males and females that primarily encourages female characteristics and aids in the signs of estrus |
| Progesterone | Hormone present primarily in the female that is related to the presence of a corpus luteum and to pregnancy |
| Corpus Luteum (CL) | Structure that replaces the corpus hemorrhagicum and is capable of production of progesterone |
| Corpus Hemorrhagicum (CH) | Structure formed within the ruptured follicle immediately after ovulation |
| Oocyte | Female component of the embryo that originates from the follicle of the ovary |
| Embryo | Structure formed by fertilization of the oocyte by sperm |
| Placenta | Structure that consists of the yolk sac, the amnion, the allantois, and the chorion; responsible for the passage of oxygen, nutrients, and waste products between fetus and dam |
| Cryptorchid | A male with one or both testes not in the scrotum |
| Luteinizing Hormone (LH) | Hormone produced in the anterior pituitary that when released can initiate follicular maturation, ovulation, and spermatogenesis |
| Relaxin | Hormone secreted by the corpus lute in he ovaries of pregnant animals; relaxed the pubic symphysis, softens the cervix, and inhibits uterine contractions |
| Estrus | Period of sexual activity in nonhuman, female mammals that includes proliferation of uterine mucosa, swelling of the vulva, ovulation, and acceptance of coitus |
| Anestrus | Period of no or least reproductive activity |
| Parturition | Process by which delivery of mammalian offspring occurs |
| Artificial Insemination (AI) | Placement of semen within the uterus or oviduct by other natural means so that fertilization of oocytes can occur |
| Prolactin | Hormone secreted by the pituitary gland that, in concert with progesterone and estrogen and other hormones, stimulates milk formation |
| Oxytocin | Hormone produced in the hypothalamus and stored in the posterior pituitary, which, when released, enhances milk "letdown" into the teat canal and uterine contractility |
| Pineal Gland | The endocrine structure within the brain that acts to correlate the length of daylight to reproduction |
| Fetal Membranes | Membranes that support fetal development by providing nutrition and enabling respiration and excretion; include yolk sac, allantois, amnion, and chorion |
| Chorioallantois | Membrane formed by the fusion of the chorionic and allantoic membranes |
| Allantois | Innermost portion of the fused chorioallantoic membrane, which assists in the transfer of nutrients, oxygen, and waste products to and from the fetus |
| Amnion | Membrane that separates the amniotic lubricating fluid surrounding the fetus from the urine-like fluid within the allantoic membrane |
| Seasonally Polyestrous | Having repeated estrous cycles that occur during the breeding season of a species |
Created by:
KaleighMichelle
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