Question 1

Which of the following is correctly matched?

Accepted Answer

A)   first stage of labor - baby exits vagina
B)   second stage of labor - ends with cervix dilation to maximum
C)   third stage of labor - placenta expelled from uterusD) A) and B)
E) B) and C)

Question 2

When more than one gene pair is involved in an inheritance pattern, it is called

Accepted Answer

A)   structural gene.
B)   autosome.
C)   genotype.
D)   polygenic.
E)   y-linked.F) A) and B)
G) A) and C)

Question 3

Some epiblast cells migrate and emerge between the epiblast and endoderm as a new germ layer called the

Accepted Answer

A)   yolk sac.
B)   mesoglia.
C)   notochord.
D)   mesoderm.
E)   primitive streak.F) A) and B)
G) B) and D)

Question 4

Identify the hormone secreted during pregnancy that cause the ducts of the mammary glands to grow and branch when in high levels.

Accepted Answer

A)   Estrogen
B)   Progesterone
C)   Prolactin
D)   Growth hormoneE) A) and B)
F) A) and C)

Question 5

The adult kidney develops from the

Accepted Answer

A)   pronephros.
B)   metanephros.
C)   mesonephros.
D)   allantois.
E)   neonephros.F) All of the above
G) B) and E)

Question 6

The pleural and peritoneal cavities of the adult begin as part of the _____ cavity.

Accepted Answer

A)   cloacal
B)   somatomeric
C)   coelomic
D)   apical
E)   ventralF) A) and B)
G) A) and E)

Question 7

Gastrulation is the process of development that produces the

Accepted Answer

A)   placenta.
B)   embryonic disk.
C)   germ layers.
D)   rudimentary organs.E) A) and B)
F) A) and C)

Question 8

Most congenital birth defects are caused by

Accepted Answer

A)   inherited traits.
B)   lack of oxygen to the fetus.
C)   viral infections during pregnancy.
D)   unknown causes.
E)   None of these choices is correct.F) B) and D)
G) A) and E)

Question 9

The clinical age of the unborn child is calculated from

Accepted Answer

A)   ovulation.
B)   conception.
C)   the last menstrual period.
D)   fourteen days after the last menstrual period.
E)   fourteen days before the last menstrual period.F) B) and C)
G) A) and B)

Question 10

Which of the following events near the end of pregnancy might indicate parturition is near?

Accepted Answer

A)   The cervix gradually constricts.
B)   The uterus begins regular contractions.
C)   The amniotic sac becomes edematous.
D)   The fetal heart rate increases to greater than 160 beats per minute.
E)   The cervix shrinks.F) A) and B)
G) D) and E) B

Question 11

The olfactory bulbs and nerves develop as an evagination from the

Accepted Answer

A)   myelencephalon.
B)   mesencephalon.
C)   neural crest cells.
D)   diencephalon.
E)   telencephalon.F) B) and C)
G) C) and E)

Question 12

Which of the following will cause contractions of uterine smooth muscle?

Accepted Answer

A)   increasing levels of progesterone
B)   decreasing levels of estrogen
C)   decreasing levels of oxytocin
D)   decreasing uterine stretch
E)   increasing levels of oxytocinF) A) and B)
G) A) and C)

Question 13

At the time of implantation, the human embryo is in a stage of development known as the

Accepted Answer

A)   fetus.
B)   zygote.
C)   morula.
D)   blastocyst.
E)   egg.F) B) and D)
G) B) and C)

Question 14

An embryonic cell that contains the potential to give rise to any tissue type is called a/an

Accepted Answer

A)   differentiated cell.
B)   multipotent cell.
C)   pluripotent cell.
D)   omnipotent cell.
E)   totipotent cell.F) All of the above
G) A) and B)

Question 15

Many gerontologists refer to walking as one of the most important anti-aging activities to prolong life. This is because a daily 30-minute walk

Accepted Answer

A)   increases blood pressure.
B)   improves circulation.
C)   promotes anaerobic metabolism.
D)   increases urine output.
E)   increases peripheral resistance.F) A) and D)
G) D) and E)

Question 16

Autoimmune diseases such as arthritis become more common as people get older. "Autoimmune" means that the immune system

Accepted Answer

A)   no longer produces antibodies.
B)   destroys the body's own tissues.
C)   is incapable of initiating phagocytosis.
D)   produces T cells but no B cells.
E)   protects itself.F) B) and D)
G) B) and C)

Question 17

Before parturition,

Accepted Answer

A)   the placenta secretes increased amounts of oxytocin.
B)   the uterus stretches, causing the release of ACTH from the adenohypophysis.
C)   there is an increase in the stimulatory effects of progesterone on the uterine muscle.
D)   prostaglandin synthesis is inhibited.
E)   fetal glucocorticoids decrease the production of progesterone by the placenta.F) C) and E)
G) B) and E)

Question 18

Fusion of the male and female pronuclei

Accepted Answer

A)   results in an oocyte forming.
B)   restores the diploid number of chromosomes.
C)   occurs before ovulation.
D)   results in a haploid cell forming.
E)   results in a total of 23 chromosomes.F) A) and E)
G) B) and E)

Question 19

The greenish discharge from the lower digestive tract shortly after birth is called

Accepted Answer

A)   colostrum.
B)   jaundice.
C)   bile.
D)   meconium.
E)   prolactin.F) B) and D)
G) A) and B) D

Question 20

In fetal circulation, the blood containing the highest amount of oxygen is found in the

Accepted Answer

A)   aorta.
B)   umbilical vein.
C)   ductus arteriosus.
D)   umbilical arteries.
E)   heart.F) A) and C)
G) A) and E) B

Exam 29: Development, Growth, Aging, and Genetics

Which of the following is correctly matched?

Correct AnswerverifiedShow Answer

When more than one gene pair is involved in an inheritance pattern, it is called

Correct AnswerverifiedShow Answer

Some epiblast cells migrate and emerge between the epiblast and endoderm as a new germ layer called the

Correct AnswerverifiedShow Answer

Identify the hormone secreted during pregnancy that cause the ducts of the mammary glands to grow and branch when in high levels.

Correct AnswerverifiedShow Answer

The adult kidney develops from the

Correct AnswerverifiedShow Answer

The pleural and peritoneal cavities of the adult begin as part of the _____ cavity.

Correct AnswerverifiedShow Answer

Gastrulation is the process of development that produces the

Correct AnswerverifiedShow Answer

Most congenital birth defects are caused by

Correct AnswerverifiedShow Answer

The clinical age of the unborn child is calculated from

Correct AnswerverifiedShow Answer

Which of the following events near the end of pregnancy might indicate parturition is near?

Correct AnswerverifiedB

The olfactory bulbs and nerves develop as an evagination from the

Correct AnswerverifiedShow Answer

Which of the following will cause contractions of uterine smooth muscle?

Correct AnswerverifiedShow Answer

At the time of implantation, the human embryo is in a stage of development known as the

Correct AnswerverifiedShow Answer

An embryonic cell that contains the potential to give rise to any tissue type is called a/an

Correct AnswerverifiedShow Answer

Many gerontologists refer to walking as one of the most important anti-aging activities to prolong life. This is because a daily 30-minute walk

Correct AnswerverifiedShow Answer

Autoimmune diseases such as arthritis become more common as people get older. "Autoimmune" means that the immune system

Correct AnswerverifiedShow Answer

Before parturition,

Correct AnswerverifiedShow Answer

Fusion of the male and female pronuclei

Correct AnswerverifiedShow Answer

The greenish discharge from the lower digestive tract shortly after birth is called

Correct AnswerverifiedD

In fetal circulation, the blood containing the highest amount of oxygen is found in the

Correct AnswerverifiedB

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B

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D

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B