Question 1

Day 12 of embryonic development is when a new layer forms via which of the following?

Accepted Answer

A)  Meiosis 
B)  Mitosis 
C)  Gastrulation 
D)  Embryolization 
E)  Placentation 
A)  Meiosis 
B)  Mitosis 
C)  Gastrulation 
D)  Embryolization 
E)  Placentation C

Question 2

The trophoblast and the mesoderm together are called the:

Accepted Answer

A)  chorion. 
B)  allantois. 
C)  amnion. 
D)  amniotic sac. 
E)  placenta. 
A)  chorion. 
B)  allantois. 
C)  amnion. 
D)  amniotic sac. 
E)  placenta. A

Question 3

A solid, ball-like mass of cells that develops on the third to fourth day of implantation is called a(n) __________.

Accepted Answer

morula

Question 4

The __________ stage of development is the first in which all three germ layers of tissue are evident.

Accepted Answer

The answer of The __________ stage of development is the...

Question 5

Which of the following hormones stimulates the alveolar glands of the breasts to develop, assisted by placental lactogen?

Accepted Answer

A)  Progesterone 
B)  Prolactin 
C)  Inhibin 
D)  Estrogen 
E)  Oxytocin 
A)  Progesterone 
B)  Prolactin 
C)  Inhibin 
D)  Estrogen 
E)  Oxytocin

Question 6

The first milk after delivery that the mother produces is known as __________.

Accepted Answer

The answer of The first milk after delivery that the...

Question 7

How long after ovulation is the egg capable of being fertilized?

Accepted Answer

A)  6-12 hours 
B)  12-24 hours 
C)  24-38 hours 
D)  38-52 hours 
E)  52-72 hours 
A)  6-12 hours 
B)  12-24 hours 
C)  24-38 hours 
D)  38-52 hours 
E)  52-72 hours

Question 8

By day 12 of embryonic development, a new layer forms through meiosis.

Accepted Answer

A) True 
 B)False

Question 9

Human gametes contain 46 chromosomes.

Accepted Answer

A) True 
 B)False

Question 10

Sperm cannot fertilize an egg until they undergo __________.

Accepted Answer

The answer of Sperm cannot fertilize an egg until they...

Question 11

Which of the following is true about colostrum?

Accepted Answer

A)  It contains antigens. 
B)  It contains more proteins than breast milk. 
C)  It contains more fats than breast milk. 
D)  It contains more carbohydrates than breast milk. 
E)  It lacks antibodies. 
A)  It contains antigens. 
B)  It contains more proteins than breast milk. 
C)  It contains more fats than breast milk. 
D)  It contains more carbohydrates than breast milk. 
E)  It lacks antibodies.

Question 12

The second stage of labor is the __________ stage.

Accepted Answer

The answer of The second stage of labor is the...

Question 13

The period of gestation when the organs complete most of their development, and the fetus looks distinctly human, is the third trimester.

Accepted Answer

A) True 
 B)False

Question 14

The axial support for the embryo is called the __________.

Accepted Answer

The answer of The axial support for the embryo is...

Question 15

When the embryo is implanted in an area other than the uterus, the condition is called ectopic pregnancy.

Accepted Answer

A) True 
 B)False

Question 16

Which of the following is true concerning the placenta?

Accepted Answer

A)  By the seventh month of gestation, it develops atrophy. 
B)  Commonly, it secretes prolactin to prepare the breasts. 
C)  It forms the uterine endometrium. 
D)  By the third month of gestation, it is fully functional. 
E)  It produces wastes. 
A)  By the seventh month of gestation, it develops atrophy. 
B)  Commonly, it secretes prolactin to prepare the breasts. 
C)  It forms the uterine endometrium. 
D)  By the third month of gestation, it is fully functional. 
E)  It produces wastes.

Question 17

The trophoblast is mostly responsible for forming the lining of the endometrium.

Accepted Answer

A) True 
 B)False

Question 18

__________ stimulates uterine contractions, aiding in the later stage of labor.

Accepted Answer

The answer of __________ stimulates uterine contractions, aiding in the...

Question 19

By which week of pregnancy may the external reproductive organs be distinguished as either male or female?

Accepted Answer

A)  4th week 
B)  6th week 
C)  8th week 
D)  12th week 
E)  20th week 
A)  4th week 
B)  6th week 
C)  8th week 
D)  12th week 
E)  20th week

Question 20

Which of the following is true about cleavage?

Accepted Answer

A)  It is the period during which the blastocyst forms. 
B)  It is the period when the three embryonic germ layers appear. 
C)  It is the period when vast amounts of cell migration occur. 
D)  It is the period during which amniotic fluid is produced. 
E)  It is the period during which a morula disappears. 
A)  It is the period during which the blastocyst forms. 
B)  It is the period when the three embryonic germ layers appear. 
C)  It is the period when vast amounts of cell migration occur. 
D)  It is the period during which amniotic fluid is produced. 
E)  It is the period during which a morula disappears.

Exam 26: Pregnancy and Development

Day 12 of embryonic development is when a new layer forms via which of the following?

The trophoblast and the mesoderm together are called the:

A solid, ball-like mass of cells that develops on the third to fourth day of implantation is called a(n) __________.

The __________ stage of development is the first in which all three germ layers of tissue are evident.

Which of the following hormones stimulates the alveolar glands of the breasts to develop, assisted by placental lactogen?

The first milk after delivery that the mother produces is known as __________.

How long after ovulation is the egg capable of being fertilized?

By day 12 of embryonic development, a new layer forms through meiosis.

Human gametes contain 46 chromosomes.

Sperm cannot fertilize an egg until they undergo __________.

Which of the following is true about colostrum?

The second stage of labor is the __________ stage.

The period of gestation when the organs complete most of their development, and the fetus looks distinctly human, is the third trimester.

The axial support for the embryo is called the __________.

When the embryo is implanted in an area other than the uterus, the condition is called ectopic pregnancy.

Which of the following is true concerning the placenta?

The trophoblast is mostly responsible for forming the lining of the endometrium.

__________ stimulates uterine contractions, aiding in the later stage of labor.

By which week of pregnancy may the external reproductive organs be distinguished as either male or female?

Which of the following is true about cleavage?

Introduction to Human Anatomy and Physiology

Chemical Basics of Life

Cells

Cellular Metabolism

Tissues

Integumentary System

Bone Tissues and the Skeletal System

Articulations

Muscle Tissue

Muscular System

Neural Tissue

Central Nervous System

Peripheral Nervous System and Reflex Activity

Autonomic Nervous System

Special Senses

Endocrine System

Blood

The Heart

Vascular System

Lymphatic System and Immunity

Respiratory System

Urinary System

Fluid, Electrolyte, and Acid-Base Balance

Digestive System

Reproductive System

Heredity

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