Specific Learning Objectives Describe the changes males and females undergo during puberty Explain the terms ovulation and menstruation Describe the stages in the female menstrual cycle ID: 376014
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Slide1
Puberty
Specific Learning Objectives:
Describe the changes males and females undergo during
puberty
Explain the terms
ovulation
and
menstruation
Describe
the stages in the
female menstrual cycleSlide2
Human children are born with a complete set of sex organs. However, they do not become active until between the ages of 10 and 18. In males, the testes start to make sperm in boys and in females, the ovaries start to release eggs.This stage of development is called puberty (or adolescence)
.
During this important period, many changes take place in the bodies of young men and women.
Puberty mind mapSlide3
Boys vs girls Hormonal changes, mind map Slide4Slide5Slide6
Puberty mind mapSlide7
Time to ChangeWhen your body reaches a certain age, your brain releases a special hormone that starts the changes of puberty. It's called gonadotropin-releasing hormone, or GnRH for short. When GnRH reaches the pituitary gland (a pea-shaped gland that sits just under the brain), this gland releases into the bloodstream two more puberty hormones: luteinizing hormone (LH for short) and follicle-stimulating hormone (FSH for short). Guys and girls have both of these hormones in their bodies. And depending on whether you're a guy or a girl, these hormones go to work on different parts of the body.Slide8
Puberty mind mapSlide9Slide10
An important part of puberty for girls is the beginning of their monthly cycle. This is known as the menstrual cycle. The menstrual cycle involves the preparation of the uterus lining so that it is able to receive a fertilized egg. If an egg is fertilized, it will (?) implant
itself in the prepared uterus lining.
If it is not fertilized, the lining of the uterus breaks down and is lost from the body. This is called
menstruation
or
a period.
Note: the menstrual cycle is controlled by hormones ~ hormones are special chemicals which travel in the blood and carries a message from one organ to anotherSlide11
Four hormones involved in controlling menstruation
Name
Made…
Function
FSH
Pituitary
Stimulates one egg cell to develop (become follicle)
Oestrogen
Ovary
Stimulates rebuilding of the uterus wall
LH
Pituitary
Stimulates follicle to burst and release the ovum
Progesterone
Ovary
Completes development of uterus wall, promotes glycogen storageSlide12Slide13
Key Words…Menstruation
and
ovulation Slide14
http://kidshealth.org/misc/movie/bodybasics/bodybasics_female_repro.htmlSlide15Slide16Slide17Slide18Slide19Slide20Slide21Slide22Slide23
2 Menstruation_Animation.mp4Slide24
PMS Some girls and women find that they feel sad or easily irritated during the few days or week before their periods. Others may get angry more quickly than normal or cry more than usual. Some girls crave certain foods. These types of emotional changes may be the result of premenstrual syndrome (PMS).
PMS
is related to changes in the body's hormones. As hormone levels rise and fall during a woman's menstrual cycle, they can affect the way she feels, both emotionally and physically.