Topics: Menstrual cycle, Endometrium, Reproductive system Pages: 4 (674 words) Published: May 7, 2014

Male System
The structure and function of the human male reproductive system, is very similar to that of many other mammals. The male system is designed to make sperm or male gametes and is adapted to provide for the delivery of these gametes to the female to allow for fertilization.

Male Reproductive System

Male Reproductive System Structures

1. testes -- produces sperm and the hormone testosterone

2. scrotum -- pouch enclosing the testes keeping the sperm at an optimum temperature for development

3. vas deferens -- tube carrying sperm away from the testes

4. prostate gland -- the largest of several glands which add lubricating and other fluids to the sperm

-- this combination of sperm and fluids is called semen

5. urethra -- tube through the penis carrying sperm to the outside of the body

6. penis -- adaptation for internal fertilization of the female

Female System
The structure and function of the human female reproductive system, is very similar to that of many other mammals. It is designed to produce female gametes or eggs, allow for internal fertilization, support the internal development of the embryo and fetus, and provide nutrition through milk for the newborn.

Female Reproductive System

Female Reproductive System Structures

1. ovary -- (females have two of these) -- produce female gametes or eggs and the hormone estrogen

2. oviduct (fallopian tube) -- carries the egg away from the uterus

-- internal fertilization normally occurs here

3. uterus -- implantation and development of the embryo and fetus before birth occurs here

4. vagina or birth canal -- entry point for sperm from the male and exit tube for the baby when it is born

Endocrine Interactions
Human reproduction and development are influenced by factors such as gene expression, hormones, and the environment. The reproductive cycle in both males and females is regulated by several different hormones. Some of these...
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