Human Sexuality Development 3

SEXUALITY UNIT
Bellringer Questions
T F 1. All females have menstrual cramps during their period.
T F 2. Sperm and semen are the same thing.
T F 3. A boy’s breasts can get bigger and become sore during puberty.
T F 4. The hormone testosterone causes a boy’s voice to deepen.
T F 5. You cannot go swimming when a female has her period.
T F 6. Boys undergo puberty at the same time as girls?
T F 7. The testicles will shrink in cold water.
T F 8. A female cannot get pregnant before she has her first period.
T F 9. A male’s sperm lives less than one day inside a women.
T F 10. All methods of birth control protect against STDs.

T F 11. All male’s have nocturnal emissions.
T F 12. Females are more emotional during their period.
T F 13. It is possible for semen and urine to mix together and pass
through the body at the same time.
T F 14. A female is most likely or easiest to get pregnant just before

her period.
T F 15. Circumcision is an operation that removes the foreskin of the

penis.
T F 16. An episiotomy is a surgical incision from the females vagina

to anus.
T F 17. The size of a male’s penis determines how masculine he will

be.
T F 18. The uterus in females is where the eggs are produced.
T F 19. A female cannot get pregnant the first time she has sex?
T F 20. During sexual intercourse, if the man withdraws before

ejaculation, the female cannot become pregnant.
Male reproductive system
Concerns for Males
 Prostate Cancer- One of the most
common cancers among men in
America. 8 of 10 Men diagnosed are
over 65.
 Hernia- Part of intestine bulge through
abdominal wall.
– Inguinal Hernia-“turn your head and cough”
 Sterility- Oligospermia “Mumps”
Female Reproductive System
Concerns for Females
 Sterility- Unable to conceive and give birth.

 Breast Cancer- First-degree relatives, over
50, no pregnancies.
 “PMS”- Over 150 symptoms over 40 million at
a time or experiencing PMS.
 Toxic Shock Syndrome (TSS)- Flu like
symptoms. Staphylococcus aureus = staff
infection
Male Reproductive System
 Testosterone  Seminal Vesicles

 Sperm  Prostate Gland
 Seminiferous  Cowper's Gland
Tubules
 Urethra
 Testes
 Penis
 Scrotum
 Epididymis  Ejaculation
 Vas Deferens
Female Reproductive System
 Ova  Uterus
 Ovaries  Endometrium
 Progesterone  Cervix
 Estrogen  Vagina
 Ovulation  Labia Minora
 Fallopian Tubes  Labia Majora
MENSTRATION
The Four Phases
 PhaseOne: Day 1 to end of
Menstruation
– The breakdown of the lining in the uterus
(endometrium)
– Around 4-7 days
– Follicle stimulating hormone (FSH) causes
growth
The Four Phases Continued…
 PhaseTwo: From the end of

Menstruation to Ovulation
– FSH secretes estrogen causing the lining
in the uterus to grow.
– Ova starts to mature in a follicle in the
ovary.
 Phase Three: Ovulation Occurs
– Release of a mature egg.
– Travels through the fallopian tube.
– Egg survives 24-48 hours (2 days)
– Occurs around day 14.
 Phase Four: Endometrium Thickens/

Traveling Egg
– LH hormone causes a Corpus Luteum.
– Corpus Leteum prepare for the reception of
the egg and secretes Progesterone.
– Progesterone nourishes the fallopian tubes
and works with estrogen to cause the
endometrium to thicken.
– If the egg is not fertilized it will drop.
Menstrual Cycle
28 Day Cycle
2-3 Tablespoon Blood
40-50 = Menapause
Conception & Implantation
Fertilization-union of a male sperm and female’s egg.
Zygote-as soon as the ovum is fertilized. Protective
membrane. (Day 1-4)
Blastocyst-cluster of cells characterized by hallow
center. (Day 4-6)
Embryo-cluster of cells that develop between 3-8
weeks following implantation.
Baby is a size of a dot.
Embryonic Growth
Amniotic sac- thin
membrane around the
embryo. “Bag of Water”
Umbilical cord- a ropelike
structure that connects
the embryo and mother.
(20 in)
Placenta- thick blood-rich
tissue that line the walls
of the uterus.
Nourishes embryo acts
like a filter.
Fetal Development
1st TRIMESTER
 6 days after fertilization it plants in uterus and
know is called embryo.
 Buds, eyes develop
 Mother may experience morning sickness
frequent urination.
 By month 3 you have teeth, finger prints, 3”
long and weighs 1oz.
 After 8 weeks is called a fetus!
2nd Trimester
 By month 4 gain about 1 pound week.

 Brain cells increase
 Baby can start to hear.
 If mother is older may perform an
amniosthesis. Check for Down’s Syndrome.
 At the end of this trimester feel kicking,
flutters, etc and the baby weighs1 ½ pounds
and is 11-14 inches long.
3rd TRIMESTER
 During the 7 and 8th month baby has rapid

weight gain.
 Expected parent’s begin to take Birth Classes.
Lamaze Method is the most common.
 By the 9th month baby places pressure up on
diaphragm and down on the bladder.
 Uterus lowers, the baby descends (called
lightening)
 Nesting instincts take over.
Labor
STAGE 1: WATER BREAKES AND CONTRACTIONS
Dilation, contractions begin. Uterus contracts causing
cervix to dilate. Water breaks.
STAGE 2: CROWNING TO BIRTH OF BABY!

Passage through the birth canal. Cervix is fully dilated.
STAGE 3 AFTERBIRTH
Contractions continue and delivery of afterbirth
(Placenta).
Complications
 Caesarean- Surgical incision through the abdomen.
 Breech Birth- Baby comes out of uterus buttocks first
 Rh Factor- most are Rh+ problems occur when Rh’s are different.
 Ectopic-when the zygote implants in the fallopian tube.
 Preclampsia-toxemia prevents the placenta from getting enough
blood. Signs are high blood pressure and swelling.
 Gestational diabetes mellitus (GDM)
GDM , or carbohydrate intolerance, is first diagnosed during pregnancy
through an oral glucose tolerance test. Between 5.5 and 8.8% of
pregnant women develop GDM in Australia. Risk factors for GDM
include a family history of diabetes, increasing maternal age, obesity
and being a member of a community or ethnic group with a high risk of
developing type 2 diabetes. While the carbohydrate intolerance usually
returns to normal after the birth, the mother has a significant risk of
developing permanent diabetes while the baby is more likely to develop
obesity and impaired glucose tolerance and/or diabetes later in life.
Self-care and dietary changes are essential in treatment.
Permanent Prevention
 Tubal ligation: “Tubes Tied” Getting the

fallopian tubes tied.
 Hysterectomy: Uterus is removed.
Semi-Permanent
 Vasectomy: “Tubes Cut” Cutting the
vas deferens in the male reproductive
system.
The Day I Was Born……
I was born on (date)_________
I weighed_______
I was___inches long
My parents named me (first middle and last)_________
Other information about my labor and delivery I’d like to
share:____________________________________
How long was your mom in labor?
Are you the 1st, 2nd, 3rd child?
Any complications during birth…cesarean, RH factor, breech birth,
forceps?
Anything unique?
EXTRA CREDIT- COMPLETE A POSTER WITH THE INFORMATION

AND A FAVORITE BABY PICTURE ON IT!!

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SEXUALITY UNIT

T F 2. Sperm and semen are the same thing.

T F 4. The hormone testosterone causes a boy’s voice to deepen.

T F 5. You cannot go swimming when a female has her period.

T F 6. Boys undergo puberty at the same time as girls?

T F 7. The testicles will shrink in cold water.

T F 9. A male’s sperm lives less than one day inside a women.

T F 10. All methods of birth control protect against STDs.

T F 12. Females are more emotional during their period.

T F 14. A female is most likely or easiest to get pregnant just before

T F 15. Circumcision is an operation that removes the foreskin of the

T F 16. An episiotomy is a surgical incision from the females vagina

T F 17. The size of a male’s penis determines how masculine he will

T F 18. The uterus in females is where the eggs are produced.

T F 20. During sexual intercourse, if the man withdraws before

 Sterility- Unable to conceive and give birth.

 Testosterone  Seminal Vesicles

 PhaseTwo: From the end of

 Phase Four: Endometrium Thickens/

 By month 4 gain about 1 pound week.

 During the 7 and 8th month baby has rapid

STAGE 2: CROWNING TO BIRTH OF BABY!

 Tubal ligation: “Tubes Tied” Getting the

EXTRA CREDIT- COMPLETE A POSTER WITH THE INFORMATION

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