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vocan #10

QuestionAnswer
Aromatase an enzyme that converts androstenedione to estrogen.
Granulosa cells a group of cells lining the ovarian follicle which become part of the corpus luteum after ovulation.
Ovarian cycle a series of changes in the ovary that results in maturation of a follicle, shedding of the ovum, and development of the corpus luteum.
Edometrium a mucous membrane that lines the uterus and thickens during the menstrual cycle in response to progesterone and in preparation for implantation of an embryo
Corpus luteum an endocrine structure that develops in an ovary in response to luteanizing hormone after an ovum has been discharged but degenerates after a few days unless pregnancy has begun.
Follicular phase phase of the ovarian cycle during which follicles in the pvary mature. This phase ends with ovulation.
Luteal phase phase of the ovarian cycle during which corpus luteum is formed in response to a rise in lutenizing hormone and progesterone. 
Oestrogen a sex hormone that regulates many bodily functions and behaviors including production of eggs, development of follicles, secondary sexual characteristics, and estrus.
Progesterone a steroid sex hormone produced by the corpus luteum in order to prepare the uterus for conception. During pregnancy, it protects the embryo and fosters growth of the placenta.
Atresia breakdown of the ovarian follicles, which consist of an oocyte surrounded by granulosa cells and theca cells.
Human chorionic gonadotropin (hCG): is a placental hormone that binds to LH receptors in the corpus luteum and stimulates luteal cells to produce oestradiol and progesterone.
Oocyte a cell from which an egg or ovum develops by meiosis; a female gametocyte.
Ovulation release of a secondary oocyte from the graafian follicle.
Relaxin a hormone produced by the corpus luteum and the placenta during pregnancy. It facilitates birth process by softening and lengthening the pubic symphysis and cervix.
Theca cells In response to luteinizing hormone, produce androstenedione that is converted by aromatase into 17β estradiol to supply the granulosa cells with estradiol.
Zona pellucida the transparent, noncellular, secreted layer surrounding an ovum.
ZP3 receptor in the zona pellucida which binds sperm at the beginning of fertilization.
uterine/menstural cycle cyclical changes in the endometial lining of the uterus in response to hormones to preparing for zygote implantation.
Created by: Jackline2
 

 



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