Science Homework Help!!!!!!!!!?

Question by Lu Sumskin: Science Homework help!!!!!!!!!?
I’m doing an exit project on Drug use during pregnancy & its effects on the fetus
& I need help with my homework so please help me the best you can 😉
My questions are :
What kind of physical problems can happen to the fetus if the mother drinks alcohol during the pregnancy? & please explain
What kind of physical problems can happen the fetus if drugs are taken (During the mother’s pregnancy)?

Best answer:

Answer by texman
The unborn baby can actually become a drug or alcohol addict even before he is born.

When you are pregnant, it is important that you watch what you put into your body. Consumption of illegal drugs is not safe for the unborn baby or for the mother. Studies have shown that consumption of illegal drugs during pregnancy can result in miscarriage, low birth weight, premature labor, placental abruption, fetal death, and even maternal death. The following information can help you understand these drugs and their effects.

Marijuana:
Common slang names: pot, weed, grass and reefer
What happens when a pregnant woman smokes marijuana? Marijuana crosses the placenta to your baby. Marijuana, like cigarette smoke, contains toxins that keep your baby from getting the proper supply of oxygen that he or she needs to grow.
How can marijuana affect the baby? Studies of marijuana in pregnancy are inconclusive because many women who smoke marijuana also use tobacco and alcohol. Smoking marijuana increases the levels of carbon monoxide and carbon dioxide in the blood, which reduces the oxygen supply to the baby. Smoking marijuana during pregnancy can increase the chance of miscarriage, low birth weight, premature births, developmental delays, and behavioral and learning problems.
What if I smoked marijuana before I knew I was pregnant? According to Dr. Richard S. Abram, author of Will it Hurt the Baby, “occasional use of marijuana during the first trimester is unlikely to cause birth defects.” Once you are aware you are pregnant, you should stop smoking. Doing this will decrease the chance of harming your baby.
Cocaine:
Common slang names: bump, toot, C, coke, crack, flake, snow, and candy
What happens when a pregnant woman consumes cocaine? Cocaine crosses the placenta and enters your baby’s circulation. The elimination of cocaine is slower in a fetus than in an adult. This means that cocaine remains in the baby’s body much longer than it does in your body.
How can cocaine affect my baby? According to the Organization of Teratology Information Services (OTIS), during the early months of pregnancy cocaine exposure may increase the risk of miscarriage. Later in pregnancy, cocaine use can cause placental abruption. Placental abruption can lead to severe bleeding, preterm birth, and fetal death. OTIS also states that the risk of birth defects appears to be greater when the mother has used cocaine frequently during pregnancy. According to the American Congress of Obstetricians and Gynecology (ACOG), women who use cocaine during their pregnancy have a 25 % increased chance of premature labor. Babies born to mothers who use cocaine throughout their pregnancy may also have a smaller head and be growth restricted. Babies who are exposed to cocaine later in pregnancy may be born dependent and suffer from withdrawal symptoms such as tremors, sleeplessness, muscle spasms, and feeding difficulties. Some experts believe that learning difficulties may result as the child gets older. Defects of the genitals, kidneys, and brain are also possible.
What if I consumed cocaine before I knew I was pregnant? There have not been any conclusive studies done on single doses of cocaine during pregnancy. Birth defects and other side effects are usually a result of prolonged use, but because studies are inconclusive, it is best to avoid cocaine altogether. Cocaine is a very addictive drug and experimentation often leads to abuse of the drug.
Heroin:

Answer by Richard_S
for both drugs and alcohol, the fetus’s developing nervous system including the brain and spinal cord is particularly vulnerable. There’s something called fetal alcohol syndrome (FAS) which can result from excessive alcohol intake during pregancy.

There’s a good page at http://www.americanpregnancy.org/pregnancyhealth/illegaldrugs.html which should tell you what you need to know about the effects of drugs.