Question 1

The last stage of labor is the

Accepted Answer

A) dilation stage. 
B) expulsion stage. 
C) placental stage. 
D) decidual stage. 
E) neonate stage. 
A) dilation stage. 
B) expulsion stage. 
C) placental stage. 
D) decidual stage. 
E) neonate stage.

Question 2

The yolk stalk and body stalk fuse during week five,forming the

Accepted Answer

A) amnion. 
B) allantois. 
C) chorion. 
D) umbilical stalk. 
E) primitive streak. 
A) amnion. 
B) allantois. 
C) chorion. 
D) umbilical stalk. 
E) primitive streak.

Question 3

The stage of labor during which the fetus begins to shift toward the cervical canal is the

Accepted Answer

A) emergence stage. 
B) dilation stage. 
C) placental stage. 
D) expulsion stage. 
E) fetal stage. 
A) emergence stage. 
B) dilation stage. 
C) placental stage. 
D) expulsion stage. 
E) fetal stage.

Question 4

Individuals with ________ have only one sex chromosome,and it is an X chromosome.

Accepted Answer

A) Trisomy 21 
B) Down's syndrome 
C) Turner's syndrome 
D) Fragile-X syndrome 
E) Klinefelter's syndrome 
A) Trisomy 21 
B) Down's syndrome 
C) Turner's syndrome 
D) Fragile-X syndrome 
E) Klinefelter's syndrome

Question 5

Paired chromosomes are called

Accepted Answer

A) homologous chromosomes. 
B) autosomal chromosomes. 
C) homozygous chromosomes. 
D) heterozygous chromosomes. 
E) alleles. 
A) homologous chromosomes. 
B) autosomal chromosomes. 
C) homozygous chromosomes. 
D) heterozygous chromosomes. 
E) alleles.

Question 6

The extraembryonic membrane that forms the urinary bladder is the

Accepted Answer

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

Question 7

Fertilization of the ovum usually occurs

Accepted Answer

A) within one hour of ovulation. 
B) as much as three to four days following ovulation. 
C) in the ovary. 
D) in the upper third of the uterine tube. 
E) in the uterus. 
A) within one hour of ovulation. 
B) as much as three to four days following ovulation. 
C) in the ovary. 
D) in the upper third of the uterine tube. 
E) in the uterus.

Question 8

At which gestational age do basic heart structures,major blood vessels,lymph nodes,and ducts form?

Accepted Answer

A) month 6 
B) month 8 
C) month 4 
D) month 7 
E) month 2 
A) month 6 
B) month 8 
C) month 4 
D) month 7 
E) month 2

Question 9

Regarding X-linked traits,if a father with normal color vision has children with a heterozygous mother,what percentage of the daughters will have normal color vision?

Accepted Answer

A) 0% 
B) 25% 
C) 50% 
D) 75% 
E) 100% 
A) 0% 
B) 25% 
C) 50% 
D) 75% 
E) 100%

Question 10

Near the end of the first trimester,deoxygenated blood flows from the developing embryo or fetus to the placenta through

Accepted Answer

A) paired umbilical veins. 
B) the superior vena cava. 
C) one umbilical vein. 
D) three umbilical arteries. 
E) paired umbilical arteries. 
A) paired umbilical veins. 
B) the superior vena cava. 
C) one umbilical vein. 
D) three umbilical arteries. 
E) paired umbilical arteries.

Question 11

The mesoderm forms (the)

Accepted Answer

A) muscle. 
B) epidermis. 
C) neural tissues. 
D) mucous epithelium of nasal passageways. 
E) pituitary gland and adrenal medullae. 
A) muscle. 
B) epidermis. 
C) neural tissues. 
D) mucous epithelium of nasal passageways. 
E) pituitary gland and adrenal medullae.

Question 12

The purpose of the Human Genome Project (HGP)is to

Accepted Answer

A) identify alleles for research in the field of autosomal recessive diseases. 
B) describe the full set of genetic material in human chromosomes. 
C) discover new methods for fingerprinting and other forensic methods. 
D) create a "master race" by limiting the gene pool to carriers of desirable genes. 
E) study human development and to ultimately find a way to slow down senescence. 
A) identify alleles for research in the field of autosomal recessive diseases. 
B) describe the full set of genetic material in human chromosomes. 
C) discover new methods for fingerprinting and other forensic methods. 
D) create a "master race" by limiting the gene pool to carriers of desirable genes. 
E) study human development and to ultimately find a way to slow down senescence.

Question 13

The period of gestation when the basic components of each of the major organ systems appear is the ________ trimester(s).

Accepted Answer

A) first 
B) second 
C) third 
D) first and second 
E) second and third 
A) first 
B) second 
C) third 
D) first and second 
E) second and third

Question 14

Choose the correct statement regarding neonates.

Accepted Answer

A) Urinary water losses are low. 
B) The digestive system is extremely active before birth. 
C) Neonatal respiratory rates are considerably lower than those of adults. 
D) Typical neonatal heart rates are lower than fetal heart rates. 
E) At birth,the lungs are fully expanded and filled with fluid. 
A) Urinary water losses are low. 
B) The digestive system is extremely active before birth. 
C) Neonatal respiratory rates are considerably lower than those of adults. 
D) Typical neonatal heart rates are lower than fetal heart rates. 
E) At birth,the lungs are fully expanded and filled with fluid.

Question 15

The ectoderm forms which of the following?

Accepted Answer

A) muscle 
B) all lymphatic structures 
C) the cardiovascular system 
D) the thymus,thyroid gland,and pancreas 
E) all neural tissues 
A) muscle 
B) all lymphatic structures 
C) the cardiovascular system 
D) the thymus,thyroid gland,and pancreas 
E) all neural tissues

Question 16

Hemophilia is a(n)

Accepted Answer

A) example of dominance. 
B) example of codominance. 
C) polygenic trait. 
D) recessive trait. 
E) sex-linked trait. 
A) example of dominance. 
B) example of codominance. 
C) polygenic trait. 
D) recessive trait. 
E) sex-linked trait.

Question 17

The chorionic villi

Accepted Answer

A) help prepare the mammary glands for milk production. 
B) are free endodermal tips that grow toward the wall of the blastocyst. 
C) bulge into the amniotic cavity at the head fold and extend toward the trophoblast. 
D) provide the surface area for gaseous exchange between fetal and maternal bloodstreams. 
E) form constrictions that narrow the yolk stalk and the body stalk between the embryo and the surrounding trophoblast. 
A) help prepare the mammary glands for milk production. 
B) are free endodermal tips that grow toward the wall of the blastocyst. 
C) bulge into the amniotic cavity at the head fold and extend toward the trophoblast. 
D) provide the surface area for gaseous exchange between fetal and maternal bloodstreams. 
E) form constrictions that narrow the yolk stalk and the body stalk between the embryo and the surrounding trophoblast.

Question 18

The period of sexual and physical maturation is (the)

Accepted Answer

A) infancy. 
B) childhood. 
C) senescence. 
D) adolescence. 
E) neonatal period. 
A) infancy. 
B) childhood. 
C) senescence. 
D) adolescence. 
E) neonatal period.

Question 19

Regarding lactation and the mammary glands,which statement is true?

Accepted Answer

A) Colostrum contains more proteins than breast milk. 
B) An expectant mother's mammary glands begin producing colostrum by the end of the second month of pregnancy. 
C) As colostrum production increases,the mammary glands convert to milk production. 
D) Colostrum,unlike milk,contains large quantities of lysozymes. 
E) Colostrum has much more fat than breast milk. 
A) Colostrum contains more proteins than breast milk. 
B) An expectant mother's mammary glands begin producing colostrum by the end of the second month of pregnancy. 
C) As colostrum production increases,the mammary glands convert to milk production. 
D) Colostrum,unlike milk,contains large quantities of lysozymes. 
E) Colostrum has much more fat than breast milk.

Question 20

-Label D represents which of the following structures?

Accepted Answer

A) blastocoele 
B) blastocyst 
C) trophoblast 
D) developing villi 
E) chorion 
A) blastocoele 
B) blastocyst 
C) trophoblast 
D) developing villi 
E) chorion

The last stage of labor is the

The yolk stalk and body stalk fuse during week five,forming the

The stage of labor during which the fetus begins to shift toward the cervical canal is the

Individuals with ________ have only one sex chromosome,and it is an X chromosome.

Paired chromosomes are called

The extraembryonic membrane that forms the urinary bladder is the

Fertilization of the ovum usually occurs

At which gestational age do basic heart structures,major blood vessels,lymph nodes,and ducts form?

Regarding X-linked traits,if a father with normal color vision has children with a heterozygous mother,what percentage of the daughters will have normal color vision?

Near the end of the first trimester,deoxygenated blood flows from the developing embryo or fetus to the placenta through

The mesoderm forms (the)

The purpose of the Human Genome Project (HGP)is to

The period of gestation when the basic components of each of the major organ systems appear is the ________ trimester(s).

Choose the correct statement regarding neonates.

The ectoderm forms which of the following?

Hemophilia is a(n)

The chorionic villi

The period of sexual and physical maturation is (the)

Regarding lactation and the mammary glands,which statement is true?

-Label D represents which of the following structures?

An Introduction to Anatomy and Physiology

The Chemical Level of Organization

Cell Structure and Function

The Tissue Level of Organization

The Integumentary System

The Skeletal System

The Muscular System

The Nervous System

The General and Special Senses

The Endocrine System

The Cardiovascular System: Blood

The Cardiovascular System: the Heart

The Cardiovascular System: Blood Vessels and Circulation

The Lymphatic System and Immunity

The Respiratory System

The Digestive System

Metabolism and Energetics

The Urinary System

The Reproductive System

Filters

Exam 20: Development and Inheritance

The last stage of labor is the

The yolk stalk and body stalk fuse during week five,forming the

The stage of labor during which the fetus begins to shift toward the cervical canal is the

Individuals with ________ have only one sex chromosome,and it is an X chromosome.

Paired chromosomes are called

The extraembryonic membrane that forms the urinary bladder is the

Fertilization of the ovum usually occurs

At which gestational age do basic heart structures,major blood vessels,lymph nodes,and ducts form?

Regarding X-linked traits,if a father with normal color vision has children with a heterozygous mother,what percentage of the daughters will have normal color vision?

Near the end of the first trimester,deoxygenated blood flows from the developing embryo or fetus to the placenta through

The mesoderm forms (the)

The purpose of the Human Genome Project (HGP)is to

The period of gestation when the basic components of each of the major organ systems appear is the ________ trimester(s).

Choose the correct statement regarding neonates.

The ectoderm forms which of the following?

Hemophilia is a(n)

The chorionic villi

The period of sexual and physical maturation is (the)

Regarding lactation and the mammary glands,which statement is true?

-Label D represents which of the following structures?

An Introduction to Anatomy and Physiology

The Chemical Level of Organization

Cell Structure and Function

The Tissue Level of Organization

The Integumentary System

The Skeletal System

The Muscular System

The Nervous System

The General and Special Senses

The Endocrine System

The Cardiovascular System: Blood

The Cardiovascular System: the Heart

The Cardiovascular System: Blood Vessels and Circulation

The Lymphatic System and Immunity

The Respiratory System

The Digestive System

Metabolism and Energetics

The Urinary System

The Reproductive System

Filters