Sexual Reproduction

Sexual-Reproduction-Concept-Map
Reproductive organs
Male
Testis
Produces Sperms
Scrotum
Keep the testis and the penis
out of the body
Epididymis
Where sperms produced by
the testis are stored
Urethra
Tube which carriers both
sperm and urine out of the
body
Sex Glands
Releases fluid that nourishes and
protects the sperms, and forms
semen
Sperm Duct
Tube that carriers sperms
from the epididymis to the
urethra
Female
Fallopian tube
Carries ovum to uterus, and has
cilia to sweep ovum to the
urerus
Vagina
Site where sperms are
deposited during sexual
intercourse
Ovary
Produces sex hormones and ova
Cervix
Neck of the uterus which
widens during child birth
Uterus
Structure whereby the fertilised ovum is
implanted in, and also where ovum is
developed into zygote and foetus during
pregnancy
Puberty
Male
Testis and penis increase in size
Height rapidly increases
Reproductive system becomes
active
Ejaculation starts
Hair grows on face, chest,
pubic areas
Female
Ovaries and vagina increase in size
Menstruation occurs
Hair grows on face, pubic areas
Hips widen and become rounder
Height rapidly increases
Breast develop
Heredity
The transmission of genetic
characteristics from parents to
offspring
Sperm which contains father's DNA
Ovum which contains mother's DNA
Zygote contains mixture of
father and mother's DNA
Ferti...
Sperm meets the ovum in the
Fallopian tube and fertilisation
occurs
One sperm penetrates
Fertilised egg is called the zygote
Abortion
Use surgical procedure to remove the
developing embryo
Complications may rise
Infections of the uterus
Weakening of the
cervix
Menstrual Cycle
Menstruation
Day 15 of the cycle
Contractions cause cramps
Thickening of uterine lining
To prepare for implantation, the lining
thickens and becomes spongy, and full of
capillaries
Ovulation
Day 1416 of the cycle
Considered the most fertile period
When it stops
Temporary
When a person is pregnant, menstruation
stops but thick uterine wall is maintained to
cushion the developing fertilised ovum
Permanent
Stops at menopause onwards,
which happens after 50 years
old+
Sexually transmitted infections
Caused by viruses and microorganisms
Transmitted by:
Skin to skin contact
Contact with bodily fluids
From infected mother to foetus
From infected mother to baby
during childbirth
Different infections
Gonorhea
Caused by sperical bateria
Transmitted through
Sexual intercourse
Mother to baby through childbirth
Symptoms
Painful sensation during urination
Newborn may be blind
Can be treated with antibiotics
Syphilis
Caused by spiral bacteria
Transmitted through
Sexual intercourse
Mother to foetus during pregnancy
Symptoms
Nonitchy skin rash
Deformed joints
Paralysis
Acquired Immune Deficiency
Syndrome
Caused by Humans
Immunodeficiency Virus
Transmitted through
Sexual intercourse
Blood transfusion
Symptoms/effects
HIV attacks white blood cells, therefore
the immune system of the person is
reduced
Currently no cure
Birth control
Preventing fertilisation
Condom
Worn over the erected penis
Barriers the eggs and sperms
Diaphragm
Placed over the cervix
Barriers the spemrs and eggs
Spermicide
Kills sperms
Preventing ovulation
Contraceptive pills
Contains synthetic female
sex hormones
Suppresses the development
and release of the eggs
Preventing the development
of a fertilised egg
Intrauterine device
Inserted into the uterus, which prevents
implantation of the fertilised egg in the
uterus
Sterilisation
Ligation (Females)
Tie and cut Fallopian tubes
Vasectomy (Males)
Tie and cut the sperm duct
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