Chapter 27: Human Development and Heredity Herlihy: The Human Body in Health and Illness, 6th Edition

Chapter 27: Human Development and
Heredity Herlihy: The Human Body in Health
and Illness, 6th Edition

.Afterbirth refers primarily to which structure?

a. Morula

b. Zygote

c. Fetus

d. Placenta - ANSWER-d. Placenta



.From week 3 to week 8, the baby-to-be is called a(n)

a. zygote.

b. morula.

c. fetus.

d. embryo. - ANSWER-d. embryo.



.In addition to acting as an exchange site between the mother and fetus, the placenta also secretes

a. estrogen and progesterone.

b. amniotic fluid.

c. vernix caseosa.

d. colostrum. - ANSWER-a. estrogen and progesterone.



.The blastocyst

a. lives in the uterus.

b. is a fetal structure.

c. lives in the fallopian tube.

d. is an estrogen-secreting ovarian structure. - ANSWER-a. lives in the uterus.

, .The conversion of the corpus luteum to the corpus albicans

a. is characteristic of the nonpregnant state.

b. is due to the secretion of hCG.

c. prevents ovulation in the next menstrual cycle.

d. occurs only in twinning. - ANSWER-a. is characteristic of the nonpregnant state.



.The fimbriae sweep the ovum into which structure immediately following ovulation?

a. Uterus

b. Fallopian tube

c. Vagina

d. Ovary - ANSWER-b. Fallopian tube



.What "lives" in the fallopian tube for a brief period of time?

a. An embryo

b. A fetus

c. A blastocyst

d. A zygote - ANSWER-d. A zygote



.What is the baby-to-be called after 9 weeks of development?

a. Zygote

b. Fetus

c. Embryo

d. Neonate - ANSWER-b. Fetus



.What is the hormonal basis of the pregnancy test?

a. Estrogen

b. Prostaglandin

c. Oxytocin