Question 1

Which structure is commonly called the bag of waters (it breaks prior to delivery and often signals the onset of labor)?

Accepted Answer

A) Primary germ layers 
B) Morula 
C) Amniotic sac 
D) Blastocyst 
A) Primary germ layers 
B) Morula 
C) Amniotic sac 
D) Blastocyst

Question 2

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

Accepted Answer

A) An embryo 
B) A fetus 
C) A blastocyst 
D) A zygote 
A) An embryo 
B) A fetus 
C) A blastocyst 
D) A zygote

Question 3

Fertilization is most apt to occur when sexual intercourse takes place close to

Accepted Answer

A) ovulation. 
B) early adenohypophyseal secretion of gonadotropins. 
C) the last day of a 28-day cycle. 
D) the first day of a 28-day cycle. 
A) ovulation. 
B) early adenohypophyseal secretion of gonadotropins. 
C) the last day of a 28-day cycle. 
D) the first day of a 28-day cycle.

Question 4

Which group is incorrect?

Accepted Answer

A) Primary germ layers: ectoderm,mesoderm,chromosomes 
B) Embryonic structures: zygote,blastomere,morula,blastocyst 
C) Genes: dominant,recessive,codominant 
D) Genetic disorders: Down,Edward,and Patau syndromes 
A) Primary germ layers: ectoderm,mesoderm,chromosomes 
B) Embryonic structures: zygote,blastomere,morula,blastocyst 
C) Genes: dominant,recessive,codominant 
D) Genetic disorders: Down,Edward,and Patau syndromes

Question 5

The chorionic villi sit in blood-filled endometrial spaces called

Accepted Answer

A) the umbilical cord. 
B) the lacunae. 
C) the yolk sac. 
D) allantois. 
A) the umbilical cord. 
B) the lacunae. 
C) the yolk sac. 
D) allantois.

Question 6

Which of the following is a disclike structure where the fetal and maternal circulations meet (baby eats,excretes,and breathes at this site)?

Accepted Answer

A) Umbilicus 
B) Placenta 
C) Primary germ layers 
D) Zygote 
A) Umbilicus 
B) Placenta 
C) Primary germ layers 
D) Zygote

Question 7

This structure carries oxygenated blood from the placenta to the fetus.

Accepted Answer

A) Umbilical artery 
B) Ductus arteriosus 
C) Embryonic disc 
D) Umbilical vein 
A) Umbilical artery 
B) Ductus arteriosus 
C) Embryonic disc 
D) Umbilical vein

Question 8

Which of the following is characterized by quickening,lanugo,and vernix caseosa?

Accepted Answer

A) Zygote 
B) Trophoblast 
C) Embryo 
D) Fetus 
A) Zygote 
B) Trophoblast 
C) Embryo 
D) Fetus

Question 9

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

Accepted Answer

A) Uterus 
B) Fallopian tube 
C) Vagina 
D) Ovary 
A) Uterus 
B) Fallopian tube 
C) Vagina 
D) Ovary

Question 10

Which of the following describes the consequence of this event: two ova are fertilized by two different sperm?

Accepted Answer

A) Monozygotic twins 
B) Identical twins 
C) Dizygotic twins 
D) More than one of the above are true. 
A) Monozygotic twins 
B) Identical twins 
C) Dizygotic twins 
D) More than one of the above are true.

Question 11

How is a child with X and Y chromosomes best described?

Accepted Answer

A) Having Down syndrome 
B) Hemophiliac 
C) Immature 
D) Male 
A) Having Down syndrome 
B) Hemophiliac 
C) Immature 
D) Male

Question 12

Which of the following is most apt to develop in response to compression of the umbilical cord?

Accepted Answer

A) Hemolytic jaundice of the newborn (hyperbilirubinemia) 
B) Endometriosis (maternal) 
C) Fetal hypoxemia 
D) Premature separation of the placenta 
A) Hemolytic jaundice of the newborn (hyperbilirubinemia) 
B) Endometriosis (maternal) 
C) Fetal hypoxemia 
D) Premature separation of the placenta

Question 13

Which hormone is secreted by the trophoblastic cells during implantation and helps preserve the corpus luteum?

Accepted Answer

A) Estrogen 
B) Progesterone 
C) hCG 
D) FSH 
A) Estrogen 
B) Progesterone 
C) hCG 
D) FSH

Question 14

Which of the following best describes the amnion,chorion,yolk sac,and allantois?

Accepted Answer

A) Primary germ layers 
B) Inner cell mass 
C) Dizygotic twins 
D) extraembryonic membranes 
A) Primary germ layers 
B) Inner cell mass 
C) Dizygotic twins 
D) extraembryonic membranes

Question 15

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

Accepted Answer

A) estrogen and progesterone. 
B) amniotic fluid. 
C) vernix caseosa. 
D) colostrum. 
A) estrogen and progesterone. 
B) amniotic fluid. 
C) vernix caseosa. 
D) colostrum.

Question 16

Which of the following is true of implantation?

Accepted Answer

A) It is called conception. 
B) It is divided into trimesters. 
C) It is stimulated by FSH and LH. 
D) It occurs within the uterus. 
A) It is called conception. 
B) It is divided into trimesters. 
C) It is stimulated by FSH and LH. 
D) It occurs within the uterus.

Question 17

Afterbirth refers primarily to which structure?

Accepted Answer

A) Morula 
B) Zygote 
C) Fetus 
D) Placenta 
A) Morula 
B) Zygote 
C) Fetus 
D) Placenta

Question 18

Which word refers to milk production by the mammary glands?

Accepted Answer

A) Implantation 
B) Parturition 
C) Lactation 
D) Quickening 
A) Implantation 
B) Parturition 
C) Lactation 
D) Quickening

Question 19

What is the outer extraembryonic membrane that forms finger-like projections called villi and helps form the placenta?

Accepted Answer

A) Amnion 
B) Chorion 
C) Umbilicus 
D) Trophoblast 
A) Amnion 
B) Chorion 
C) Umbilicus 
D) Trophoblast

Question 20

Which cream cheese-like substance is secreted by baby's sebaceous glands and protects the skin from the amniotic fluid?

Accepted Answer

A) Lanugo 
B) Colostrum 
C) Vernix caseosa 
D) Meconium 
A) Lanugo 
B) Colostrum 
C) Vernix caseosa 
D) Meconium

Exam 27: Human Development and Heredity

Which structure is commonly called the bag of waters (it breaks prior to delivery and often signals the onset of labor)?

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

Fertilization is most apt to occur when sexual intercourse takes place close to

Which group is incorrect?

The chorionic villi sit in blood-filled endometrial spaces called

Which of the following is a disclike structure where the fetal and maternal circulations meet (baby eats,excretes,and breathes at this site)?

This structure carries oxygenated blood from the placenta to the fetus.

Which of the following is characterized by quickening,lanugo,and vernix caseosa?

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

Which of the following describes the consequence of this event: two ova are fertilized by two different sperm?

How is a child with X and Y chromosomes best described?

Which of the following is most apt to develop in response to compression of the umbilical cord?

Which hormone is secreted by the trophoblastic cells during implantation and helps preserve the corpus luteum?

Which of the following best describes the amnion,chorion,yolk sac,and allantois?

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

Which of the following is true of implantation?

Afterbirth refers primarily to which structure?

Which word refers to milk production by the mammary glands?

What is the outer extraembryonic membrane that forms finger-like projections called villi and helps form the placenta?

Which cream cheese-like substance is secreted by baby's sebaceous glands and protects the skin from the amniotic fluid?

Introduction to the Human Body

Basic Chemistry

Cells

Cell Metabolism

Microbiology Basics

Tissues and Membranes

Integumentary System and Body Temperature

Skeletal System

Muscular System

Nervous System: Nervous Tissue and Brain

Nervous System: Spinal Cord and Peripheral Nerves

Autonomic Nervous System

Sensory System

Endocrine System

Blood

Anatomy of the Heart

Function of the Heart

Anatomy of the Blood Vessels and Special Circulations

Functions of the Blood Vessels

Lymphatic System

Immune System

Respiratory System

Digestive System

Urinary System

Water, Electrolyte, and Acidbase Balance

Reproductive Systems

Filters