Life Cycle of Sperm and Egg
| | | | | The Life Cycle of the Sperm and Egg
From Beginning to End | Adianez LabrielPSY 265
Phoenix University
December 14, 2012 |
Table of Contents The Life Cycle of the Egg 1 The female sex organ 1-2 The Male Sex Organ. 3
The female and male sex organs and their functions………....……..4
The Life Cycle of the Sperm and Egg
From Beginning to End
When asked how did I get pregnant? It seems like a rhetorical question. Of course many would say well you had sex Watson. That is a no brainer, but in all actuality that is not the extent of the answer. How do we become pregnant? What happens in order for that miracle we call life to be created?
The egg develops during the first phase of the Menstrual Cycle. This first phase is called the Proliferative Phase. This phase begins at the end of your menstruation and last about 9 to 10 days during the average 28-day cycle. The ovaries then prepare for the ovulation within a phase called the preovulatory phase or the follicular phase. At this time there are low levels of estrogen and progesterone in the woman’s blood stream. A report by Spencer A. Rathus, Jeffrey S. Nevid, and Lois Fichner-Rathus (2011) explains that the hypothalamus senses a low level of estrogen in the blood; it then increases secretion of Gn-RH, which in turn triggers the pituitary gland to release a follicle-stimulating hormone (FSH). Thus after this occurs the FSH stimulates follicles to mature and then proceeds to create estrogen. In a normal situation only one follicle will reach true maturity in the days proceeding to ovulation. This then leads to maturity of the graafian follicle. As it matures like any budding child that blossoms and grow out of their clothes, this specific follicle starts to move toward the surface of the ovary and then eventually release itself after rupturing. During the rupturing process this follicle releases a mature egg. After the egg is released the endometrium in the uterus starts to
From Beginning to End | Adianez LabrielPSY 265
Phoenix University
December 14, 2012 |
Table of Contents The Life Cycle of the Egg 1 The female sex organ 1-2 The Male Sex Organ. 3
The female and male sex organs and their functions………....……..4
The Life Cycle of the Sperm and Egg
From Beginning to End
When asked how did I get pregnant? It seems like a rhetorical question. Of course many would say well you had sex Watson. That is a no brainer, but in all actuality that is not the extent of the answer. How do we become pregnant? What happens in order for that miracle we call life to be created?
The egg develops during the first phase of the Menstrual Cycle. This first phase is called the Proliferative Phase. This phase begins at the end of your menstruation and last about 9 to 10 days during the average 28-day cycle. The ovaries then prepare for the ovulation within a phase called the preovulatory phase or the follicular phase. At this time there are low levels of estrogen and progesterone in the woman’s blood stream. A report by Spencer A. Rathus, Jeffrey S. Nevid, and Lois Fichner-Rathus (2011) explains that the hypothalamus senses a low level of estrogen in the blood; it then increases secretion of Gn-RH, which in turn triggers the pituitary gland to release a follicle-stimulating hormone (FSH). Thus after this occurs the FSH stimulates follicles to mature and then proceeds to create estrogen. In a normal situation only one follicle will reach true maturity in the days proceeding to ovulation. This then leads to maturity of the graafian follicle. As it matures like any budding child that blossoms and grow out of their clothes, this specific follicle starts to move toward the surface of the ovary and then eventually release itself after rupturing. During the rupturing process this follicle releases a mature egg. After the egg is released the endometrium in the uterus starts to