11 Flashcards
What is the gestation period from fertilization to birth?
38 weeks / 9 months
What significant development occurs 30 hours after fertilization?
The zygote is rapidly dividing and developing into an embryo
What begins to form during the 2-5 week stage of gestation?
The embryo’s heart begins to beat and limbs start to form
What is the amniotic sac and when is it formed?
The amniotic sac forms during the 8-12 week stage
At what weeks is the fetal stage recognized?
At the end of week 8
What major development occurs between 13-16 weeks of gestation?
The brain is fully developed, and the fetus can start feeling pain
What is the primary function of the placenta?
To allow nutrients to enter the fetus and waste materials to enter the mother’s blood
What are the components of the placenta?
- Tissues
- Blood vessels
- Membranes
What is the first stage of labor characterized by?
Pain in the abdomen due to strong uterus contractions
What happens during the second stage of labor?
The baby’s head goes through the vagina first
What occurs in the third stage of labor?
- The baby can breathe
- The umbilical cord is cut
- The placenta and amniotic sac are expelled
What factors can affect gestation and fetal development?
- Genetics
- Diet of the mother
- Size of the mother
- Diseases
- Alcohol
- Nicotine
What physical changes occur in males during puberty?
- Enlargement of testes
- Voice change
- Hair growth
What physical changes occur in females during puberty?
- Breast enlargement
- Hair growth
- Widening of hips
- Onset of ovulation
What is Thalidomide known for?
A drug that caused severe birth defects in children
What does HIV stand for?
Human Immunodeficiency Virus
Fill in the blank: The placenta allows _______ to enter the fetus.
nutrients
True or False: The fetus can feel pain before the 13th week of gestation.
False
