Stages of Pregnancy Pregnancy Definition The state of

Pregnancy Definition: The state of a woman carrying a fertilized egg. Time from conception

Pregnancy organs 2. Placenta: a. temporary organ formed from fetal and maternal tissues b.

st 1 Trimester - Mother • Major Hormonal Changes: (estrogen, progesterone) • • Menstruation

1 st Trimester • Baby at 4 weeks – Brain, spinal cord, heart appear

1 st Trimester • Baby at 8 weeks – Heart begins to beat –

1 st Trimester • Baby at 12 weeks – Nerves, muscles work together (fist)

2 nd Trimester - Mother • Nausea goes away • Weight gain • Feel

2 nd Trimester • Baby at 16 weeks – Complex skeleton forms – Transparent

2 nd Trimester • Baby at 20 weeks – Baby becomes more active –

2 nd Trimester • Baby at 24 weeks – Bone marrow begins to make

3 rd Trimester - Mother • Most weight gain • Frequent urination • Swelling

3 rd Trimester Baby at 32 weeks – Bones are finished but soft –

3 rd Trimester Baby at 36 weeks – Baby’s body fat increases – Less

3 rd Trimester Baby at 37 -40 weeks – Organs are fully functional –

Stages of Pregnancy Video http: //www. youtube. com/watch? v=dg. F 8 f. Yr. TOC

Today 1. Complete section VII – Disorders from my powerpoint notes 2. Make sure

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Stages of Pregnancy

Pregnancy Definition: The state of a woman carrying a fertilized egg. Time from conception to birth is usually 9 months

Pregnancy organs 2. Placenta: a. temporary organ formed from fetal and maternal tissues b. provides nutrients and oxygen to developing fetus c. carries away fetal metabolic waste d. produces pregnancy hormones 3. Umbilical cord: structure connecting the placenta and the fetus 4. Amnion: fetal membrane that forms a fluidfilled sac around the embryo

Pregnancy

Divided into 3 trimesters:

1 st Trimester (Weeks 1 -12)

st 1 Trimester - Mother • Major Hormonal Changes: (estrogen, progesterone) • • Menstruation stops Fatigue Upset Stomach / Nausea Tender Breasts

1 st Trimester • Baby at 4 weeks – Brain, spinal cord, heart appear – Arm buds form (Baby is 1/25 th of an inch)

1 st Trimester • Baby at 8 weeks – Heart begins to beat – Eyes move forward on head – Fingers and toes appear

1 st Trimester • Baby at 12 weeks – Nerves, muscles work together (fist) – Eyes close until 28 th week – Sex organs appear

2 nd Trimester (Weeks 13 -28)

2 nd Trimester - Mother • Nausea goes away • Weight gain • Feel baby move towards the end of trimester

2 nd Trimester • Baby at 16 weeks – Complex skeleton forms – Transparent skin forms – Reaches 4 to 5 inches. Weighs 3 ounces.

2 nd Trimester • Baby at 20 weeks – Baby becomes more active – Eyebrows, nails form – Baby can hear and swallow.

2 nd Trimester • Baby at 24 weeks – Bone marrow begins to make blood cells – Lungs form but don’t work – Baby wakes and sleeps regularly. Baby born at 26 weeks has a 90% chance of living

3 rd Trimester (Weeks 29 -40)

3 rd Trimester - Mother • Most weight gain • Frequent urination • Swelling in feet, ankles

3 rd Trimester Baby at 32 weeks – Bones are finished but soft – Eyes can open and close – “Practice” breathing movements occur

3 rd Trimester Baby at 36 weeks – Baby’s body fat increases – Less space to move – 16 -19” long. 6 -7 pounds

3 rd Trimester Baby at 37 -40 weeks – Organs are fully functional – baby turns “head down” – Birth occurs!

Stages of Pregnancy Video http: //www. youtube. com/watch? v=dg. F 8 f. Yr. TOC 4

Today 1. Complete section VII – Disorders from my powerpoint notes 2. Make sure ALL your notes are completed TEST NEXT PERIOD!