Q: Which of the following equations correctly represents the calculation of gestational age in weeks if the date of fertilization is known?

$$\text{Gestational Age (weeks)} = \frac{\text{Days since fertilization}}{7}$$

Question 1

Which of the following best describes the process of human development from fertilization to birth?

Accepted Answer

A continuous process of modification and change

Question 2

Where does fertilization of the human ovum most commonly occur?

Accepted Answer

In the outer third of the oviduct (fallopian tube)

Question 3

Which structure forms as a result of continued cell divisions of the morula and is responsible for implantation in the uterine wall?

Accepted Answer

Blastocyst

Question 4

Which of the following is NOT a derivative of the mesoderm germ layer?

Accepted Answer

Nervous system

Question 5

A woman experiences severe abdominal pain and internal bleeding. Ultrasound reveals a fertilized egg implanted in the fallopian tube. What is the most likely diagnosis?

Accepted Answer

Ectopic pregnancy

Question 6

Which of the following best describes the function of the placenta?

Accepted Answer

It exchanges nutrients and waste products between mother and fetus

Question 7

Which of the following equations correctly represents the calculation of gestational age in weeks if the date of fertilization is known?

Accepted Answer

$$	ext{Gestational Age (weeks)} = \frac{	ext{Days since fertilization}}{7}$$

Question 8

Which of the following statements about monozygotic twins is TRUE?

Accepted Answer

They are genetically identical and usually share the same placenta

Question 9

A newborn is assessed using the Apgar score. Which of the following parameters is NOT included in the Apgar assessment?

Accepted Answer

Blood glucose level

Question 10

Which of the following is a major risk associated with abruptio placentae?

Accepted Answer

Fetal death within minutes and maternal hemorrhage

Question 11

Which of the following best describes the main developmental process occurring from the fourth month of gestation until delivery?

Accepted Answer

Growth in size and maturation of organ systems

Question 12

Which of the following is a plausible reason for the increased rate of dizygotic twins in recent decades?

Accepted Answer

Fertility treatments increasing the number of eggs released

Question 13

A 50-year-old woman experiences hot flashes, sleep disturbances, and vaginal dryness. Which physiological process is most likely responsible?

Accepted Answer

Menopause and decreased estrogen levels

Question 14

Which of the following is a common effect of aging on the skeletal system?

Accepted Answer

Development of bone spurs and increased risk of fractures

Question 15

Which of the following best explains why older adults are at increased risk for hypertension and stroke?

Accepted Answer

Atherosclerosis and arteriosclerosis

Question 16

Which of the following is a correct sequence of the three main stages of labor?

Accepted Answer

Onset of contractions to full dilation, delivery of baby, expulsion of placenta

Question 17

Which of the following is a plausible outcome if the respiratory membrane thickens with age?

Accepted Answer

Slowed movement of oxygen from alveoli to blood

Question 18

Which of the following is a function of the amniotic cavity during prenatal development?

Accepted Answer

Provides a fluid-filled, protective sac for the embryo/fetus

Question 19

Which of the following best describes the free-radical theory of aging?

Accepted Answer

Aging results from increased numbers of oxygen free radicals causing cellular damage

Question 20

A newborn is unable to digest lactose in breast milk. Which condition is most likely present?

Accepted Answer

Lactose intolerance

Growth, Development, and Aging: Prenatal to Late Adulthood

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