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First Trimester and Cocaine as a Teratogen

By Leland, Garron , Rob, Elizabeth. First Trimester and Cocaine as a Teratogen . 1 st to 4 th Week. -fertilization and implantation occurs -embryotic development occurs (nervous system, heart, and circulatory system). 5 th Week. -first heart beats begin

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First Trimester and Cocaine as a Teratogen

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  1. By Leland, Garron, Rob, Elizabeth First Trimester and Cocaine as a Teratogen

  2. 1st to 4th Week -fertilization and implantation occurs -embryotic development occurs (nervous system, heart, and circulatory system)

  3. 5th Week -first heart beats begin -umbilical cord, lungs, and brain start to develop -basic facial features, arm buds and leg buds, start to develop

  4. 6th ,7th Week -arms, legs, nostrils, lenses of the eye, intestines and pancreas start to appear or grow -elbows, fingers, feet, ears, and nose start to appear -intestines start to form in the umbilical cord

  5. 8th Week -cartilage and bones begin to form -eye is well under way of development -tongue begins form -intestines move toward abdomen -in males testosterone starts to be produced -about the size of a chicken egg

  6. 9th Week -baby begins movement -most joints are formed -finger prints are evident -the baby is now a fetus

  7. 10th Week -baby’s head is half its length -placenta begins to function -eyelids fuse shut

  8. 11th Week -nearly all structures are formed -finger and toes are now separated -genitals now take on the proper gender characteristics -more amniotic fluid -intestinal-muscle contractions

  9. 12th Week -vocal cords begin to form -facial features move into place -insulin in produces -intestines move further into body

  10. Teratogen Cocaine

  11. Effects -causes, miscarriage, premature birth, abrutio placenta. -increases heart rate of mother and baby -decreases oxygen to baby -bleeding of brain -spontaneous abortion 38% of the time

  12. -increased uterine contractions causing premature births -less maternal blood gets to the baby -lack of nutrition -cocaine crosses the placenta to the baby

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