8th grade-ch. 7 sec. 2 male & female reproductive systems
TRANSCRIPT
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Ch. 7 Sec. 2
Male & Female
Reproductive Systems
male female
Objectives:
1. What is sexual
reproduction?
2. What are the
structures and
functions of the
male
reproductive
system?
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• 1. when 2 living organisms
create another living organism
• When sperm reaches egg
• Joining of egg & sperm
• When 2 people make living
thing of same type
• Makes another human
• 2. sperm & testes
• Penis, urethra, testes-create
sperm, Penis delivers sperm
Objectives:
1. What is sexual
reproduction?
2. What are the
structures and
functions of the
male
reproductive
system?
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Characteristic Male Female
Sex cell sperm egg (ovum)
Organs testes ovaries
Hormones testosterone estrogen
sperm
egg
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reproduction•process by which living
things produce new
individuals of same type
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fertilization• joining of sperm & egg
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zygote• fertilized egg
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chromosomes
23
46
Eye color calculator
• carry info. that control
inherited
characteristics
– ex. eye color
– every cell= 46
• except sex cells = 23
23
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Punnett square (eye color)
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testes•male organs
•produce sperm &
testosterone
• located in scrotum
Male Reproductive System Diagram
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testosterone
• hormone that controls
development of physical
characteristics in mature
men
–facial hair
–deepening of voice
–broadening of shoulders
–ability to produce sperm
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sperm•head- contains chromosomes
•tail- helps swim toward egg
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semen= sperm cells + fluids
- leaves body urethra in penis
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Semen contains about 5 to
10 million sperm per drop!
Great Sperm Race
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Objectives:
1. What are the structures and
functions of the female
reproductive system?
2. Describe the menstrual cycle.
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ovaries
• female
organs
•produce
eggs &
estrogen
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ovaries• located near oviduct
(fallopian tubes)=
passageway for
eggs uterus (womb)
Kidshealth.org Female reproductive system
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menstrual cycle• monthly cycle of
changes that occurs in
female reproductive
system
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menstrual cycle1. egg develops in ovary
2. uterus lining thickens
3. mature egg released once
month from ovary oviduct =
ovulation
4. if sperm present- can be
fertilized for next few daysMenstruation explanation
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menstrual
discharge
developing
egg
ovulation
occurs
egg moves
oviduct
egg
enters
uterus
May 2011
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menstruation•process when extra
blood & tissue from
thickened lining pass
out of body cervix
vagina (birth canal)Menstruation Animation