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Estrous Cycle Terms
Vet 110 Animal Breeds and Husbandry
Term | Definition |
---|---|
Estrous Cycle | The period of time between one heat period and the next. |
GnRH | Gonadotropin-releasing hormone that stimulates the release of FSH |
FSH | Follicle stimulating hormone, produced in anterior pituitary, that causes follicular growth |
LH | Luteinizing hormone, produced in anterior pituitary, causing ovulation |
Estrogen | Hormone produced in the follicle causing signs of estrus and causes uterine, cervical, and vaginal changes at estrus |
Progesterone | Hormone produced by the corpus luteum that maintains pregnancy |
Inhibin | Hormone produced by the follicle that inhibits the release of FSH, thus causing further follicle growth |
Prostaglandin | Causes lyses of the corpus luteum leading to a decrease in progesterone |
Ovarian Follicle | Structures on ovary that contains the oocyte(egg) |
Oocyte | Female gamete (egg) |
Ovulation | Release of oocyte into oviduct, or uterine tube, where pregnancy begins |
Puberty | The first time of ovulation |
Fertilization | Joining of sperm and egg |
Corpus luteum (CL) | Structure on ovary that produces progesterone, aka "yellow body" |