Fetal Developmt.

Fetal Developmt.

1. 2. Three Trimesters of Pregnancy

   • First
     • @ start of 3rd month, baby is called a fetus
     • Symptoms for mother: frequent urination, morning sickness
   • Second
     • Developmt. of placenta (network of blood vessels that provide nutrients from mother to child)
   • Third
     • Baby needs larger [Ca], [Fe], and [N]
     • Largest fetal growth
     • Respiratory and digestive organs develop more to avoid complications

2. 3. Delivery

   • Natural
     • Pain Management
       • Medications
       • Lamaze method
         • Breathing technique meant to help manage pain
     • Steps
       • Cervix dilation
       • Transition
       • Expulsion
       • Placenta delivery
   • C-Section
     • Surgical removal of the baby if the labor lasts too long, or baby/mother is undergoing too much physiological stress

3. 4. Possible Complications of Pregancy/Childbirth

   • Precclampsia
     • Symptoms: High BP, edema, and protein in urine
   • Eclampsia
     • Prolonged preeclampsia symptoms
   • Miscarriage
     • Occurs in 15-20% of all pregnancies
     • Spontaneous abortion during 1st trimester
   • Stillbirth
     • Death of fetus after 20th week of pregnancy
   • Ectopic Pregnancy
     • Implantation of blastocyst in fallopian tube or pelvic cavity

4. 1. Conception

   • Mature egg released from graafian follicle of ovary
   • 100s of sperm will compete to fertilize one egg
   • 1 sperm fertilizes the egg
   • Sperm + egg = zygote
   • Zygote travels down the fallopian tube, and rapidly divides
   • Zygote --> Blastocyst (after 6 days)
   • Blastocyst attaches to uterine lining
   • Blastocyst is fully imbedded in endometrium after 11 or 12 days