NSG 250 Midterm Exam Pre Questions
And Correct Detailed Answers.
3 trimesters of development - Answer -germinal
-embryonic
-fetal
Possible events that could affect mother's homeostasis - Answer -the mother's nutrition-
vitamins (recommended net gain weight 25-30lbs)
-general health (any illnesses [HIV, flu])
-unique habits (PICA, substance abuse)
-emotional response
**teratogens (toxins)
-prenatal care
Examples of Teratogens - Answer -medications
-illness
-chemicals like alcohol
**don't know how much alcohol causes FAS
-radiation
-injury
Germinal Period: Fertilization - Answer -between conception and 2 weeks
-rapid cell division and production
-Fertilization: union of ovum and egg
-sex determination by father
-Zygote: the first human cell that occurs after
fertilization
Blastula - Answer -germinal period
-hollow fluid filled sphere of cells that eventually makes its way to the uterus, burrows into the
, - HCG: the chemical tested in pregnancy tests
- Increased levels suppress further ovulation and
- menses
Embryonic Period - Answer -2nd-8th week
-occurs after implantation is completed
-development of placenta, umbilical cord, and amniotic fluid which are all there to nourish and
protect the baby
placenta - Answer - acts as the filter for nutrients(fats, sugars, proteins, vitamins enzymes and
antibodies
-filters out waste produce
-Blood cells do not transfer through the placenta
- Larger cell products like bacteria and salts cannot pass as well
1. Ectoderm
2. Mesoderm
3. Endoderm - Answer 1. outer layer
-skin, neuroligic, brain, senses
2. middle layer
-blood, muscles, excretory system
3.inner layer
-digestive, endocrine
-. By the fourth week after conception the heart is beating and the neural tube is functioning
- By the second month-extremities, eyes, has human form.
Fetal Period - Answer -9th week-delivery
-period of function and maturation
-heart beating at 4 weeks
-critical periods: periods of fetal development that an accident here would be very intense and
likely harmful
-damage depending on timing, intensity, duration type of toxin and threshold
And Correct Detailed Answers.
3 trimesters of development - Answer -germinal
-embryonic
-fetal
Possible events that could affect mother's homeostasis - Answer -the mother's nutrition-
vitamins (recommended net gain weight 25-30lbs)
-general health (any illnesses [HIV, flu])
-unique habits (PICA, substance abuse)
-emotional response
**teratogens (toxins)
-prenatal care
Examples of Teratogens - Answer -medications
-illness
-chemicals like alcohol
**don't know how much alcohol causes FAS
-radiation
-injury
Germinal Period: Fertilization - Answer -between conception and 2 weeks
-rapid cell division and production
-Fertilization: union of ovum and egg
-sex determination by father
-Zygote: the first human cell that occurs after
fertilization
Blastula - Answer -germinal period
-hollow fluid filled sphere of cells that eventually makes its way to the uterus, burrows into the
, - HCG: the chemical tested in pregnancy tests
- Increased levels suppress further ovulation and
- menses
Embryonic Period - Answer -2nd-8th week
-occurs after implantation is completed
-development of placenta, umbilical cord, and amniotic fluid which are all there to nourish and
protect the baby
placenta - Answer - acts as the filter for nutrients(fats, sugars, proteins, vitamins enzymes and
antibodies
-filters out waste produce
-Blood cells do not transfer through the placenta
- Larger cell products like bacteria and salts cannot pass as well
1. Ectoderm
2. Mesoderm
3. Endoderm - Answer 1. outer layer
-skin, neuroligic, brain, senses
2. middle layer
-blood, muscles, excretory system
3.inner layer
-digestive, endocrine
-. By the fourth week after conception the heart is beating and the neural tube is functioning
- By the second month-extremities, eyes, has human form.
Fetal Period - Answer -9th week-delivery
-period of function and maturation
-heart beating at 4 weeks
-critical periods: periods of fetal development that an accident here would be very intense and
likely harmful
-damage depending on timing, intensity, duration type of toxin and threshold
