Transcript Chapter 16 Reproductive Systems

Chapter 16
Lessons 2 & 3
-Female Reproductive System
-Male Reproductive System
In your journal…
• What is the female sex cell? What is the male sex
cell?
• What determines the sex of a baby?
• What do you know about the male and female
reproductive system?
Reproductive Systems – systems responsible for
producing offspring
Egg/ovum – female sex cell
Always contributes x
Sperm – male sex cell
contributes x or y… determines sex of the baby
Female = XX
Male = XY
Internal Organs
Ovaries- female sex
glands
• produce egg
(ovum)
• produce estrogen
and progesterone
Born with about
200,000 eggs… 400
will mature during
your lifetime
Fallopian Tubes – pair of tubes fingerlike
projections that draw in the ovum
•pathway for egg
•carries egg to uterus
Fertilization takes place (90%)
Uterus- pear shaped
- egg implants in uterine
lining
- fetus grows
Endometrium – lining of
uterus
Cervix- opening uterus to
vagina
Implantation outside the
uterus
Implantation inside
Fallopian tube called
tubal pregnancy
1 in 50
pregnancies is
ectopic
Cervix- opening uterus to
vagina
COMMON cause of cancer!
Pap smear- test cervical
cancer (OBGYN) once a
year
• Vagina- Passageway to
outside
Picture Female Reproductive System
Fallopian
tubes
ovaries
uterus
Review 1
answers
Fallopian Tubes
Uterus
Uterine Lining
Ovum
Cervix
Ovary
Vagina
Menstrual Cycle
Days 1-8
- Menstrual flow
Days 9-13
- New egg is maturing
- Lining begins to thicken
Day 14
- Ovulation – mature egg is released
Days 15-28
- Egg travels through fallopian tube toward uterus
- Fertilization may occur
Care Female Reproductive System
• Bathe Regularly
• Have regular medical exams, including self exams
• Practice abstinence
Chance of dying from breast cancer is
about 1 in 36
Chance of a woman having invasive
breast cancer some time during her life is
about 1 in 8
Chances are high the disease
will touch your life, or the life
of someone you know.
One year
Problems of the Female
Reproductive System
• Cramps – avoid salt & caffeine light exercise help
• Premenstrual Syndrome (PMS) – causes by
hormonal changes anxiety, bloating, depression,
fatigue, wgt gain exercise can help
• Toxic Shock Syndrome (TSS) – bacterial infection –
fever, sunburn like rash, muscle aches
- low absorbency tampon
- change tampons often
Infertility and other disorders
• Infertility – you cannot reproduce
• Endometriosis - uterine tissue grows in the ovaries,
fallopian tubes, or the lining of the pelvic cavity.
• Vaginitis – bacterial infection (yeast infection,
unusual discharge, odor, pain or itching
• STIs – abstinence is the only sure way to avoid STIs
• Ovarian Cysts- fluid filled sacs on ovary, small may
disappear on their own and larger ones may be
removed surgically.
• Cancers – cervical, uterine, ovarian
Summarizer…
• Get a text book.
• Open to page 457
• Complete lesson review questions
#1-5
• Use the space provided in your
study guide!!!
Male Reproductive
Organs
External Organs
• Penis – extends trunk of the body just
above the testes
• Scrotum – external skin sac
 Hangs from the body hold testicles
 Temperature regulation
System
Internal Organs
• Testes – 2 small
glands
- sperm production
- testosterone
(hormone)
• Epididymis
- sperm mature
and are stored
• Vas Deferens
- tubes that extend
from each
epididymis to the
urethra
• Seminal Vesicle
-first stop fluid
• Prostate Gland
- more fluid
- Common site of cancer
- Rectal exam after 40/50
• Cowper’s Gland
- secrets more fluid
-Prepares urethra
• Urethra
- exit for semen & urine
Semen – thick fluid containing
sperm and other secretions
Seminal vesicle
Vas Deferens
Prostate
Cowpers gland
Penis
Urethra
epididymis
testicle
Seminiferous
tubules
Scrotum
Care of Male Reproductive Systems
•
•
•
•
•
Bathe
Regular Check ups
Protective equipment
Testicular Self Exams
Abstinence
Problems Male Reproductive
System
• Hernia – intestine pushes through abdominal
wall/scrotum
- lifting heavy object
- lump in groin area & pain
• Testicular cancer – ages 14-40 common self-exam
• Prostate cancer – rectal exam after 50
• Sterility – inability to reproduce
Summarizer…
• Get a text book.
• Open to page 451
• Complete lesson review questions
#1-6
• Use the space provided in your
study guide!!!