A baby begins when an egg cell (ovum) is fertilized by a reproductive cell (sperm) to form a fertilized egg. The new egg cell keeps dividing as you mature.

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Presentation transcript:

A baby begins when an egg cell (ovum) is fertilized by a reproductive cell (sperm) to form a fertilized egg. The new egg cell keeps dividing as you mature. These cells begin to differentiate in structure and function.

Uterus – The mother’s womb. At the end of the first week a baby burrows into the lining of the uterus.

Week 2 - a structure grows between the baby and mother’s body called a placenta.

Placenta – Keeps the baby attached to wall of the uterus. Allows for exchanges between the baby’s blood and mother’s blood. Serves as the babies kidneys, lungs, and intestines.

Week 3 – The Umbilical Cord forms. Heart starts beating

Umbilical Cord – Three blood vessels. Where oxygen and nutrients from the mother come through after being filtered by the placenta.

Beginning of arms, legs, nose, and cheeks was taking shape. Week 4 1/5 inch long Beginning of arms, legs, nose, and cheeks was taking shape.

Fingers, lungs, trachea, esophagus, and stomach starting to form. Week 5 ½ inch long. Fingers, lungs, trachea, esophagus, and stomach starting to form. Have muscles!

Ears and heart begin to form. Week 6 Ears and heart begin to form.

All major organs established Week 7 Toes formed All major organs established Less than an inch long and only 1/6 of an ounce. Look like a baby!

Completing somersaults and moving! Week 8 Slept and exercised Completing somersaults and moving!

Lips formed and cheeks get bigger. Open, close mouth, and yawn. Week 9-10 Lips formed and cheeks get bigger. Open, close mouth, and yawn. Fingernails, taste buds, and fingerprints form.

¾ an ounce and 2 inches long, growing quick! Week 11 ¾ an ounce and 2 inches long, growing quick! Chin formed. Thymus and lymph nodes developing.

Week 12 Ribs visible. 1 ounce and 3 inches long. Make faces Drink

6 inches in length and 4 ounces. Mother can feel baby move. Week 13-16 6 inches in length and 4 ounces. Hair starts growing. Mother can feel baby move.

Look very similar to how baby will look when born. 5 Months 10 inches long. Look very similar to how baby will look when born.

Eyebrows and eyelashes visible Others can see baby move 6 Months Eyebrows and eyelashes visible Hear noises 12 inches long Others can see baby move

Brain can control breathing and swallowing. 7 Months Eyes can open Can taste things Brain can control breathing and swallowing.

Fingernails finish forming 8 Months Fingernails finish forming Turn upside down

Uterus kicks the baby out! 9 Months Uterus kicks the baby out!