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MATURATION

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Unit 1 / Lesson 1 ... maturation----- – PowerPoint PPT presentation

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Title: MATURATION


1
  • --------
  • MATURATION
  • --------

2
To MATURE
  • Means to become fully grown or developed
  • Right now you are maturing in many ways
  • Your endocrine reproductive systems help you to
    mature
  • Changes occur in your body in how you think
    feel

3
The Endocrine System
  • Consists of glands that produce hormones
  • Is the chemical communication system that
    controls many body functions.

4
  • Hormone- Chemical messenger in bloodstream that
    controls many body activities are secreted by
    glands

5
  • Gland- Group of cells or organ that secretes a
    substance
  • Pituitary
  • Thyroid
  • Parathyroid
  • Adrenal
  • Pineal Body
  • Reproductive

6
The Pituitary Gland
  • -At base of brain
  • Pea-sized
  • Master Gland
  • Coordinates the endocrine nervous systems
  • Stimulates other endocrine glands to release
    their hormones

7
The Ovaries
  • Female reproductive glands
  • Produce egg cells estrogen
  • Estrogen- Female sex hormone that controls the
    development of secondary sex characteristics
    during puberty

8
The Testes
  • 2 male reproductive glands
  • Produce sperm cells testosterone
  • Testosterone- Male sex hormone that controls the
    development of secondary sex characteristics

9
Puberty
  • Stage where secondary sex characteristics appear
  • Females- 8-15
  • Males- 12-15

10
Adolescence
A simple definition is the time of life between
childhood adulthood.
11
SECONDARY SEX CHARACTERISTICS THAT OCCUR DURING
PUBERTY ---------------------------------- MALES
-Deepening of voice -Growth of facial
hair -Growth of underarm hair -Muscle
Growth -Growth of pubic hair -Start of sperm
development -Increase in ht. of 4-12
12
SECONDARY SEX CHARACTERISTICS THAT OCCUR DURING
PUBERTY ---------------------------------- FEMALE
S -Widening of hips -Breast development -Growth
of underarm hair -Growth of pubic hair -Start of
menstruation -Formation of mature eggs -Increase
in ht. of 2-8
13
HOMEOSTASISA state of chemical balance
regularity in our bodies
14
During puberty
  • You may experience slight mood changes during
    puberty due to hormone level changes
  • If the changes occurring in your body bother you,
    discuss them with a parent or doctor

15
Problems of the Endocrine System Extra Credit
  • Underactive / Overactive Thyroid
  • Dwarfism
  • Type 2 Diabetes
  • Gigantism
  • Type 1 Diabetes
  • Hypogonadism
  • Gynecomastia

-1-2 Pages -Write or type -Cite your source(s)
16
Reproductive System
  • Are the body systems that consist of the body
    organs that produce offspring

17
Female Reproductive System
Ovaries Fallopian Tubes Uterus Endometrium Ce
rvix Vagina
18
Ovaries
  • Produce egg cells estrogen
  • Egg cells are female reproductive cells
  • Females are born w/ up to 250,000 immature egg
    cells!!!
  • About 400 of these will mature in their
    lifetimes.
  • Each egg is enclosed in a follicle

19
Ovaries
  • During puberty, egg cells begin to develop
  • OVULATION 1 egg is released from its follicle
    each month by the ovaries

20
  • Uterus- Shelters supports the fetus during
    pregnancy
  • Cervix Opening of the uterus

21
  • Fallopian Tube- 4 tube that carries eggs from
    the ovaries to the uterus

22
  • The lining of the uterus begins to thicken as
    this happens in preparation for the possible
    beginning of a new life.

23
FEMALE REPRODUCTIVE ANATOMY
Muscular passageway from the uterus to the
outside of the body
The lining of the uterus
24
What happens when eggs are released by the
ovaries? One of two things 1) It is not
fertilized is released by the body through
menstruation 2) It is fertilized pregnancy
occurs
25
  • When the egg is released from an ovary not
    fertilized, it leaves the body during menstrual
    flow.
  • Menstrual Cycle- Series of monthly changes that
    occur in the female reproductive system.
  • Eggs will be fertilized in the Fallopian tube or
    released to the uterus

26
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28
  • Conception / Fertilization
  • If sperm are present when an egg is moving
    through a fallopian tube, a sperm may penetrate
    the egg

29
  • Question
  • Can more than 1 sperm cell fertilize a single
    egg?

30
Male Reproductive System
  • Penis -Vas Deferens
  • Testicles -Epididymis
  • Seminal Vesicles -Scrotum
  • Prostate Gland -Utethra
  • Cowpers Glands

31
PRODUCE SPERM
32
STORE SPERM
33
Provide nutrients For semen-up to 60 of total
composition
34
Controls the release of urine from the bladder
secretes a fluid that helps sperm cells to
survive.
35
Muscular tubes that help propel semen from body
36
Carries urine from the kidneys to the bladder
37
Protects testes regulates temperature
38
URETHRA- Tube that carries urine semen out of
the body
39
Sperm Cells
  • Male reproductive cells
  • A healthy male produces about 500,000,000 sperm
    per day
  • 1 sperm cell - .05 mm in length
  • A sperm cell takes 10 weeks to mature
  • Each testis produces about 1,500 sperm cells per
    second
  • They swim at a rate of 3 mm per hour

40
When a male is sexually stimulated, sperm leave
the testes through tubes that lead to the
urethra.Along the way they mix w/ fluids that
protect them help them to travelSemen-
mixture of sperm cells fluids that protect them
help them to move
41
Care of the Male Reproductive System
  • -At birth, the end of the penis is covered by a
    loosely fitting skin called foreskin
  • -Circumcision- Removal of this skin
  • -May reduce chances of urinary infections

-If not circumcised, males should pull foreskin
back to clearn regularly
42
Care of the Male Reproductive System
  • 1- Choose abstinence
  • 2- Have Regular medical checkups
  • 3- Wear athletic supporter / equipment in sports
  • 4- Bathe or shower daily
  • 5- Testicular examinations

43
Care of the Female Reproductive System
  • 1- Choose abstinence
  • 2- Have Regular medical checkups
  • 3- Keep track of menstrual periods to allow
    doctors to know if they are regular
  • 4- Regular exercise caffeine reduction can
    reduce cramping
  • 5- Regular breast self-examinations
  • 6- Practice good health habits during
    menstruation

44
Wrap-Up
  • Speak to a trusted adult if you have concerns
    about your changes or appearance
  • -It is helpful to feel good about your changing
    body during puberty
  • Body Image- Perception you have about your bodys
    appearance
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