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38.1 Adv. Bio

Human reproductive system

Cecilia Gutierrez

on 28 March 2013

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Transcript of 38.1 Adv. Bio

38.1 Human Reproductive System By: Cecilia Gutiérrez Adv. Bio 3rd Hour Male Anatomy:
-organs,glands, & hormones main function is to produce sperm.
-sperm forms in the testes, which are located in the scrotum. Female Anatomy:
-it's main function is to produce eggs.
- this process takes place in the ovaries.
-the ovaries are located on each side of the lower part of the abdomen. When a sperm cell in the testes divides by meiosis,
it produces four haploid cells. Works Cited:





http://www.aurorahealthcare.org/yourhealth/healthgate/images/si2229.jpg All of these four cells develop into mature sperm in about 74 days. Haploid: a cell that contains one of each type of chromosome. sperm move through coiled ducts, that then empty into a single tube (epididymis which is within the scrotum) where it then completes it's maturation. Puberty: refers to the time when secondary sex characteristics begin to develop so that sexual reproduction can be reached.
- this happens in both male and females.
-usually happens in different times in everyone. uterine wall This is not where babies come from..... Puberty in Males - the hormone responsible for growth and development of males is testosterone. - when into the bloodstream, theses hormones are transported into the testes. -in males, the beginning of puberty causes the Hypothalamus to produce several kinds of hormones that interact with the pituitary glands, - this influences many physiological process of the body. -the hypothalamus secretes a hormone that causes the pituitary gland to release two other hormones (FSH) & (LH) -LH causes the production of testosterone. -FSH causes the production of sperm cells - main funciton is to produce eggs
-eggs are female sex cells
-this process takes place in the ovaries located on each side of the lower part of the abdomen. Female Anatomy:
main function to produce eggs
Oviduct is a tube that transports eggs from ovary to the uterus.
Uterus: where fetus develop during pregnancy
estrogen is the hormone Female Anatomy: oviduct is a tube that transports eggs from from ovary to the uterus.
-uterus is the fetus develope during pregnancy
-Estrogen is the hormone responsible for changes during puberty. Difference between male and female Puberty stages. -male produce testosterone
-female produce estrogen
-males only produce sperm when they reach puberty.
-females start producing eggs since the prenatal stage. Menstrual system:
-the process that occurs during puberty, that prepares the uterus for the arrival of a fertilized egg. -continues for 30-40 years until menopause
-3 phases
-flow phase
-follicular phase
-luteral phase difference in male and female puberty stages flow phase- where the lining of the uterus (which is called the edometrium) is shed. (made up of blood,tissue fluid.) follicular phase:
estrogen is released to stimulate repair of the endometrium lutal phase:
progesterone increases blood supply to endometrium these changes correspond to arrival or a fertilized egg. If fertilization happens, the endometrium releases a fluid rich in nutrients for the embryo. THE END!!! lutal phase: estrogen is increased to help repair endotrium
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