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The male reproductive system
Transcript of The male reproductive system
To be able to label and describe the male and female reproductive systems
Sperm duct and glands
The sperm pass through the sperm ducts, and mix with fluids produced by glands (seminal vesicles). The fluids provide the sperm cells with nutrients. This mixture is called semen.
Penis and urethra
The penis has two functions:
to pass urine out of the body from the bladder
to pass semen into the vagina of a woman during sexual intercourse
The urethra is the tube inside the penis that can carry urine or semen. A ring of muscle ensures that urine and semen do not get mixed up.
Uterus and cervix
The uterus is a muscular bag with a soft lining. It is where a baby develops until its birth. The cervix is a ring of muscle at the lower end of the uterus. It keeps the baby in place while the woman is pregnant.
Which animal has:
1. The most babies?
2. The fastest pregnancy?
3. The BIGGEST baby?
How does a Kangaroo have a baby?
Male reproductive system
The two testes (one is called a testis) are contained in a bag of skin called the scrotum. They have two functions:
to produce sperm (the male gametes or sex cells)
to make the hormone testosterone
Female reproductive system
The two ovaries contain ova (eggs). Ova are the female gametes or sex cells. Women have these cells in their bodies from birth, whereas men produce new sperm continually.
Each ovary is connected to the uterus by an oviduct (fallopian tube). The oviduct is lined with ciliated cells. Every month, an ovum (egg) develops and becomes mature, and is released from an ovary. The cilia waft the ovum along inside the oviduct and into the uterus.
The vagina and Urethra
Write down the purpose of these parts