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SLS Bio12 Reproducti
SLS Bio12 Reproduction PG
| Term | Definition |
|---|---|
| acrosome | a membrane-bound compatment at the tip of the head of a sperm which contains lytic enzymes which digest the outer surface of the egg |
| anterior pituitary | A small endocrine gland secreting hormones that regulate growth and metabolism |
| cervix | Lower part of the uterus |
| clitoris | a small mass of erectile tissue situated at the anterior apex of the vestibule |
| corpus luteum | a yellow glandular mass in the ovary formed by an ovarian follicle that has matured and discharged its ovum. The corpus luteum secretes progesterone. |
| Cowper’s glands | pea-sized organs that lie below the prostate on either side of urethra |
| ductus (vas) deferens | tube that carries sperm from epididymis to urethra during ejaculation. |
| endometrium | The tissue lining the uterus |
| epididymis | tubular storage sac on top of each testis in which sperm mature. |
| estrogen | Female steroid sex Hormones that are secreted by the ovary and responsible for typical female sexual characteristics |
| follicles | sac-like structures within ovaries; each follicle contains an immature egg. |
| follicle-stimulating hormone (FSH) | Hormone released by anterior pituitary. In females, causes development of follicle, in males, promotes spermatogenesis. |
| follicular phase | phase of the estrous cycle, during which follicles in the ovary mature |
| gonadotropin-releasing hormone (GnRH) | Hormone that stimulates FSH and LH to be released. |
| human chorionic gonadotropin (HCG) | a hormone that is produced by the developing placenta and by the fertilized egg after implantation in the uterine wall. |
| implantation | When the embryo reaches the uterus and embed itself to the endometrium |
| interstitial cells | cells that lie between the seminiferous tubules that produce testosterone |
| luteal phase | The post-ovulatory phase of a woman's cycle, the corpus luteum produces progesterone, which in turn causes the uterine lining to secrete substances to support the implantation and growth of the early embryo. |
| luteinizing hormone (LH) | plays an important role in controlling ovulation and in controlling secretion of hormones by the ovaries and testes. |
| menstruation | The cyclic, physiologic discharge through the vagina of blood and mucosal tissues from the nonpregnant uterus, it is under hormonal control. |
| midpiece | Contains mitochondria for energy for movement. |
| ovarian cycle | the maturation of a chosen follicle |
| ovaries | female gonads that produce eggs and the female sex hormones. About 3 cm by 1 cm in size. |
| oviducts (fallopian tubes) | Cilia-lined tubes that transport eggs from ovaries to uterus. Are the usual site of fertilization |
| ovulation | the release of a secondary oocyte (egg) from the ovary. It occurs once per month |
| oxytocin | hormone that stimulates the contraction of the uterus for birth to start. |
| positive feedback mechanism | More hormones stimulates more hormones to be released. |
| progesterone | Promotes proliferation of uterine mucosa and the implantation of the blastocyst, prevents further follicular development. |
| proliferative phase | the second phase of the uterine cycle when estrogen causes the lining of the uterus to grow |
| prostate gland | donut shaped organ that surrounds upper part of urethra just below bladder. Secretes a milky alkaline fluid that helps sperm survive in the acidic vaginal canal. |
| scrotum | A muscular sac which contains the testes. |
| secretory phase | the second half of the menstrual cycle after ovulation; the corpus luteum secretes progesterone which prepares the endometrium for the implantation of an embryo |
| seminal fluid | non-sperm part of semen that nourishes (contains fructose), protects, lubricates sperm and helps it to move |
| seminal vesicles | pair of organs that each have duct to join to each vas deferens. Produce secretion contain fructose to nourish sperm. |
| seminiferous tubules | 3 coiled tubes within each testis in which sperm is produced. |
| sperm | the male gamete, consists of head, middle piece, and tail. Released during ejaculation |
| tail (flagellum) | WIGGLES BACK AND FORTH TO PROPEL SPERM |
| testes | male gonads which produce sperm and testosterone |
| testosterone | the principal male sex hormone that is needed for the development of the primary male sexual characteristics, maturation of sperm in spermatogenesis and also causes secondary sexual characteristics. I |
| uterine cycle | he phenomena occurring in the endometrium during the menstrual cycle, preparing it for implantation of the blastocyst. |
| uterus | thick-walled muscular organ, shaped like an upside-down pear, when fetus develops |
Created by:
pierrick02
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