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INTERESTING FACTS ABOUT PREGNANCY

•  Over the course of the pregnancy, the uterus stretches from the size of a peach to roughly the size of a medium watermelon. That's about 500 times its normal size.

• When nearing the end of pregnancy, a woman's placenta produces more estrogen in one day than a non-pregnant woman will produce in three years

• Extra fluid and water retention can cause pregnant women's feet to grow up to one full shoe size.

•  It is totally possible to be pregnant for an entire year. The longest pregnancy on record was reportedly 375 days long.

• Chances of a multiple birth increase with tall or overweight mothers.

BIOLOGY BOOK SHOP

Need to buy some biology book but do not know where it is.

There are some suggestion/recommended book shop that you can find biology book.

Popular
MPH
Arina's Book Store
Elcha Yummy Book Store
Coffee Biology Premier Book Store

  

TIPS FOR PREGNANT WOMAN

You can feel wonderful during your pregnancy if you take good care of yourself. 

1. Eat five or six well-balanced meals each day.

2. Take a prenatal vitamin each day as directed by your obstetrician or midwife.

3. Drink plenty of fluids -- at least eight to 10 glasses a day -- avoiding caffeine and artificial coloring.

4. Don't drink alcohol.

5. Don't smoke or allow yourself to be exposed to secondhand smoke.

6. Exercise -- it's important for your general health and also can help reduce stress. Take a pregnancy exercise class or walk at least fifteen to twenty minutes every day at a moderate pace. Walk in cool, shaded areas or indoors in order to prevent overheating.

7. Get adequate sleep -- at least eight hours a night. If you're suffering from sleep disturbances, take naps during the day and see your physician for advice.

8. Wear comfortable, nonrestricting shoes and put your feet up several times a day to prevent fatigue and swelling of the feet, legs, and ankles.

Support System for Embryo

CHORION

• The  extraembryonic mesoderm and trophoblast become chorion.
• encloses the entire embryo and will extend into uterus wall.
• function:
• provide anchorage and increase the surface area for transfer of nutrient,oxygen and excretory products between embryo and the maternal.
• produce hCG hormone.

AMNION

·        Surronds the entire embryo
·         Contain amniotic cavity, filled with amniotic fluid.
·         Amnion will break before birth.
     Function:
·         Inner protection membrane
·         As a protective cushions that absorbs shocks

YOLK SAC

·         Develop from hypoblast

·         In human,yolk does not contain any yolk.

Function:

·         Start the production of blood cell and germ cell.

ALLANTOIS

·         The outgrowth of the developing digestive tract.

·         Extend from yolk sac.

Function:

·         Involve in early formation of blood vassel.

·         Associate with the development of urinary bladder.

Third Trimester of Pregnancy

• During the third trimester, the fetus grows and fills the space within the embryonic membranes.
• Fetus practices breathing by inhaling amniotic fluid into its developing lung.
• A complex interplay of local regulators and hormones induces and regulates laour, the process by which childbirth occur

Second Trimester of Pregnancy

During the second trimester

-The fetus grows and is very active.

-The mother may feel fetal movements.

-The uretus grows enough for the pregnancy to become obvious.

-Brain is fully develop fetal skin is almost transparent.

Trimester of Pregnancy

"Pregnancy is a long, 10-month journey,"

 Dr. Draion Burch

An obstetrician and gynecologist at Magee-Womens Hospital at the University of Pittsburgh Medical Center.

Human gestation divided into THREE trimester:

•First Trimester (1st)

•Second Trimester (2nd)

•Third Trimester (3rd)

*1 trimester = 3 month

First Trimester

The first trimester is the main period of organogenesis, development of the body organs.All the major structures are present by 8 weeks.The embryo is called a fetus

During its first 2 to 4 weeks, the embryo obtains nutrients directly from the endometrium. Meanwhile, the outer layer of the blastocyst, called the trophoblast, mingles with the endometriumand eventually forms the placenta. Blood from the embryo travels to the placenta through arteries of the umbilical cord and returns via the umbilical vein.

4 week

                                                          

7 week

                                                                           

8 week

9-12 week

                                                                           

Change in the mother

There are change to the mother whether physical or mental during pregnancy.

Week	Change occur in the mother
2-4	Morning sickness,more tired than usual,increases sleepiness
5-8	Breast enlargement, nausea is also very common,growth of the placenta
9-12	Heart will be working even harder,increasing the volume of blood it pumps,mood swings,forgetfulness to fear,anxiety and excitement