The Reproductive System

Sophia Desantis Bishop-7

(All videos/quizzes are optional-to save time don't read the light grey text!)

The reproductive system is a collection of organs that work together for the purpose of producing a new life. Scientists argue that the reproductive system is among the most important systems in the entire body. Without the ability to reproduce, a species dies.


Important Parts:
-Vagina: The vagina is a canal that joins the cervix to the outside of the body. It also is known as the birth canal.
-Uterus (Womb): The uterus is a hollow, pear-shaped organ that is the home to a developing fetus. The uterus is divided into two parts: the cervix, and the main body of the uterus, called the corpus. The corpus can easily expand to hold a developing baby. A channel through the cervix allows sperm to enter and menstrual blood to exit.
-Ovaries: The ovaries are small, oval-shaped glands that are located on either side of the uterus. The ovaries produce eggs and hormones.
-Fallopian Tubes: These are narrow tubes that are attached to the upper part of the uterus and serve as tunnels for the ova (egg cells) to travel from the ovaries to the uterus. Conception, the fertilization of an egg by a sperm, normally occurs in the fallopian tubes. The fertilized egg then moves to the uterus, where it implants into the lining of the uterine wall.

-Breasts/Mammary Glands: Either of the two soft, protruding organs on the upper front of a woman's body that secrete milk after pregnancy.
-Cervix: The narrow necklike passage forming the lower end of the uterus.

Female Reproductive System Anatomy Quiz:
(If you know the answer, shout it out!)

1. What is the job of the breasts/mammary glands?
A: Produce Eggs/Hormones B: To Secrete Milk C: No Job
2. What is the cervix?
A:Passage/Lower Uterus B: Narrow Tubes/Upper Uterus
3. What's the function of the uterus?
A:Birth Canal B:To Secrete Milk C:Developing Fetus

Also Try:

How Are Babies Born?:

In the human reproductive process, two kinds of sex cells, or gametes, are involved. The male gamete, or sperm, and the female gamete, the egg or ovum, meet in the female's reproductive system. The female needs a male to fertilize her egg, even though it is she who carries offspring through pregnancy and childbirth. When the sperm fertilizes, or meets, the egg, this fertilized egg is called the zygote. The zygote goes through a process of becoming an embryo and developing into a fetus.The vagina is a muscular, hollow tube that extends from the vaginal opening to the uterus.

Let's Break It Down:

1. The male ejaculates semen, which contains millions of sperm and they "swim" up to the fallopian tube where they meet an egg. It only takes one sperm to fertilize an egg.
2. About a week after the sperm fertilizes the egg, the fertilized egg becomes a blastocyst, and burrows itself into the lining of the uterus, called the endometrium.
3. As cells from the blastocyst take in nourishment, the embryonic stage, begins.
4.The inner cells form a flattened circular shape called the embryonic disk, which will develop into a baby. The outer cells become thin membranes that form around the baby.
5.The cells multiply thousands of times and move to new positions to eventually become the embryo.
6.After 8 weeks, the embryo is about the size of an adult's thumb, but almost all of its parts — the brain, nerves,heart, blood,stomach, intestines,muscles, and skin have formed.
7.After about 9 months, the baby is ready for birth.


Male Reproduction System Anatomy:

-Testes: The 2 testes, also known as testicles, are the male gonads responsible for the production of sperm and testosterone.
-Epididymis: The epididymis is a sperm storage area that wraps around the superior and posterior edge of the testes.
-Vas Deferens: The vas deferens transports mature sperm to the urethra, the tube that carries urine or sperm to outside of the body, in preparation for ejaculation.
Penis: The penis is the male sex organ. In addition to its sexual function, the penis acts as a conduit for urine to leave the body.

-Scrotum: The scrotum is a sac-like organ made of skin and muscles that houses the testes.
-Seminal Vesicles: The seminal vessels are a pair of lumpy exocrine glands that store and produce some of the liquid portion of semen.
-Ejaculatory Duct: The ejaculatory duct contains the ducts from the seminal vesicles as well.
-Urethra: Semen passes from the ejaculatory duct to the exterior of the body via the urethra, an 8 to 10 inch long muscular tube.
-Prostate: The prostate is a walnut-sized exocrine gland that borders the inferior end of the urinary bladder and surrounds the urethra.
-Spermatic Cords and Ductus Deferens: Within the scrotum, a pair of spermatic cords connects the testes to the abdominal cavity. The spermatic cords contain the ductus deferens along with nerves, veins, arteries, and lymphatic vessels that support the function of the testes.

Thank you for reading my presentation, I hope you learned something new about the reproductive system!

Comment Stream