Development (Test)
A) 266 days - ANS-The prenatal period lasts _____.
A) 266 days
B) 36 weeks
C) 9 lunar months
D) 10 lunar months
C) divide by cleavage - ANS-Which of the following is true of blastomeres?
A) found in an embryo
B) have a zona pellucida
C) divide by cleavage
D) are produced by meiosis
C) morula - ANS-Which of these is the first to develop?
A) blastocyst
B) embryo
C) morula
D) fetus
B) is in the uterine tube - ANS-Which of these is NOT true of implantation?
A) involves a blastocyst
B) is in the uterine tube
C) has cells that produce HCG
D) occurs by sixth day
D) FSH - ANS-In the process of in vitro fertilization, the woman is given _____ to induce
follicle development.
A) HCG
B) human menopausal gonadotropin
C) progesterone
D) FSH
C) eighth - ANS-The embryonic period lasts from the second week through _____
week.
A) third
B) fourth
, C) eighth
D) twelfth
C) kidney - ANS-All of these arise from mesoderm except which one?
A) muscle
B) brain
C) kidney
D) blood
D) epidermis - ANS-Which of these is NOT an endodermal derivative?
A) urinary bladder
B) urethra
C) lining of stomach
D) epidermis
B) placental membrane - ANS-What prevents the maternal and embryonic blood cells
from mixing?
A) chorionic villi
B) placental membrane
C) lacunae
D) trophoblast
C) fourth week - ANS-When would drugs or radiation produce the greatest harm?
A) early fetus
B) in the ninth week
C) fourth week
D) late pregnancy
A) eighth week - ANS-When will the embryo take on a human appearance?
A) eighth week
B) fourth week
C) second fetal month
D) sixth week
C) decidua basalis - ANS-Which of these is a maternal component?
A) chorion
B) amnion
C) decidua basalis
D) umbilical cord