Question 1

The waxy coat of sloughed epithelial cells that covers the fetus is called

Accepted Answer

A)  lanugo. 
B)  fetal hair. 
C)  colostrum. 
D)  vernix caseosa. 
E)  primary hair. 
A)  lanugo. 
B)  fetal hair. 
C)  colostrum. 
D)  vernix caseosa. 
E)  primary hair.

Question 2

An embryonic cell that has the potential to develop into a wide range of tissues is called a/an

Accepted Answer

A)  differentiated cell. 
B)  multipotent cell. 
C)  pluripotent cell. 
D)  omnipotent cell. 
E)  totipotent cell. 
A)  differentiated cell. 
B)  multipotent cell. 
C)  pluripotent cell. 
D)  omnipotent cell. 
E)  totipotent cell.

Question 3

Which germ layer is the cardiovascular system derived from?

Accepted Answer

A)  ectoderm 
B)  mesoderm 
C)  endoderm 
A)  ectoderm 
B)  mesoderm 
C)  endoderm

Question 4

If the secondary palate does not fuse the result is a

Accepted Answer

A)  cleft palate. 
B)  cleft throat. 
C)  facial cleft. 
D)  cleft lip. 
E)  cleft tongue. 
A)  cleft palate. 
B)  cleft throat. 
C)  facial cleft. 
D)  cleft lip. 
E)  cleft tongue.

Question 5

The period from conception until birth is

Accepted Answer

A)  the prenatal period. 
B)  the germinal period. 
C)  the embryonic period. 
D)  the fetal period. 
E)  the conceptual period. 
A)  the prenatal period. 
B)  the germinal period. 
C)  the embryonic period. 
D)  the fetal period. 
E)  the conceptual period.

Question 6

Fusion of the male and female pronuclei forms the

Accepted Answer

A)  blastocyst. 
B)  morula. 
C)  zygote. 
D)  gastrula. 
E)  trophoblast. 
A)  blastocyst. 
B)  morula. 
C)  zygote. 
D)  gastrula. 
E)  trophoblast.

Question 7

If a woman ovulates two oocytes and both are fertilized,

Accepted Answer

A)  identical twins result. 
B)  fraternal twins result. 
C)  Siamese twins result. 
D)  monozygotic twinning occurs. 
E)  paternal twins result. 
A)  identical twins result. 
B)  fraternal twins result. 
C)  Siamese twins result. 
D)  monozygotic twinning occurs. 
E)  paternal twins result.

Question 8

Which germ layer is the urinary bladder derived from?

Accepted Answer

A)  ectoderm 
B)  mesoderm 
C)  endoderm 
A)  ectoderm 
B)  mesoderm 
C)  endoderm

Question 9

A cleft lip results when

Accepted Answer

A)  the two halves of the secondary palate do not fuse. 
B)  the frontonasal and maxillary processes do not fuse. 
C)  the lateral edges of the nasal placodes do not fuse with the maxillary processes. 
D)  the maxillary processes do not fuse with the mandibular processes. 
E)  None of these choices is correct. 
A)  the two halves of the secondary palate do not fuse. 
B)  the frontonasal and maxillary processes do not fuse. 
C)  the lateral edges of the nasal placodes do not fuse with the maxillary processes. 
D)  the maxillary processes do not fuse with the mandibular processes. 
E)  None of these choices is correct.

Question 10

Which of the following conditions might result in stress on a fetus that has nearly completed 9 months of fetal development?

Accepted Answer

A)  placental growth greater than fetal growth 
B)  cramped quarters in the uterus 
C)  increased O2 supply to the fetus 
D)  excessive weight gain by the mother 
E)  hormone fluctuations 
A)  placental growth greater than fetal growth 
B)  cramped quarters in the uterus 
C)  increased O2 supply to the fetus 
D)  excessive weight gain by the mother 
E)  hormone fluctuations

Question 11

As parturition nears, the levels of progesterone ______ and the levels of estrogen ______.

Accepted Answer

A)  decrease; increase 
B)  increase; decrease 
C)  decrease; decrease 
D)  increase; increase 
A)  decrease; increase 
B)  increase; decrease 
C)  decrease; decrease 
D)  increase; increase

Question 12

Chromosomes that are NOT associated with sex determination are known as

Accepted Answer

A)  structural genes. 
B)  autosomes. 
C)  genotypes. 
D)  polygenic. 
E)  y-linked. 
A)  structural genes. 
B)  autosomes. 
C)  genotypes. 
D)  polygenic. 
E)  y-linked.

Question 13

Developmental events are 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. 
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.

Question 14

The opening that connects the right and left atria in the fetal heart is the

Accepted Answer

A)  interatrial septum. 
B)  septum primum. 
C)  septum secundum. 
D)  foramen ovale. 
E)  foramen rotundum. 
A)  interatrial septum. 
B)  septum primum. 
C)  septum secundum. 
D)  foramen ovale. 
E)  foramen rotundum.

Question 15

Which gland is derived from both neural crest cells and mesoderm?

Accepted Answer

A)  anterior pituitary gland 
B)  posterior pituitary gland 
C)  thyroid gland 
D)  adrenal glands 
E)  pancreas 
A)  anterior pituitary gland 
B)  posterior pituitary gland 
C)  thyroid gland 
D)  adrenal glands 
E)  pancreas

Question 16

What term means that both alleles are different?

Accepted Answer

A)  locus 
B)  alleles 
C)  homozygous 
D)  heterozygous 
E)  karyotype 
A)  locus 
B)  alleles 
C)  homozygous 
D)  heterozygous 
E)  karyotype

Question 17

Which of the following chromosome anomalies can be found in either sex?

Accepted Answer

A)  Turner's Syndrome (XO) 
B)  Klinefelter's Syndrome (XXY) 
C)  Down Syndrome (Trisomy 21) 
D)  Barker's Syndrome 
E)  They all can be found in either sex. 
A)  Turner's Syndrome (XO) 
B)  Klinefelter's Syndrome (XXY) 
C)  Down Syndrome (Trisomy 21) 
D)  Barker's Syndrome 
E)  They all can be found in either sex.

Question 18

Which gland develops from an evagination of the ectoderm in the roof of the embryonic oral cavity?

Accepted Answer

A)  anterior pituitary gland 
B)  posterior pituitary gland 
C)  thyroid gland 
D)  adrenal glands 
E)  pancreas 
A)  anterior pituitary gland 
B)  posterior pituitary gland 
C)  thyroid gland 
D)  adrenal glands 
E)  pancreas

Question 19

The placenta and membranes surrounding the embryo develop from the

Accepted Answer

A)  morula. 
B)  blastocyst. 
C)  trophoblast. 
D)  inner cell mass. 
E)  blastocele. 
A)  morula. 
B)  blastocyst. 
C)  trophoblast. 
D)  inner cell mass. 
E)  blastocele.

Question 20

In females, the genital tubercle becomes the

Accepted Answer

A)  uterus. 
B)  ovary. 
C)  clitoris. 
D)  vagina. 
E)  labia. 
A)  uterus. 
B)  ovary. 
C)  clitoris. 
D)  vagina. 
E)  labia.

Exam 29: Development, Growth, Aging, and Genetics

The waxy coat of sloughed epithelial cells that covers the fetus is called

An embryonic cell that has the potential to develop into a wide range of tissues is called a/an

Which germ layer is the cardiovascular system derived from?

If the secondary palate does not fuse the result is a

The period from conception until birth is

Fusion of the male and female pronuclei forms the

If a woman ovulates two oocytes and both are fertilized,

Which germ layer is the urinary bladder derived from?

A cleft lip results when

Which of the following conditions might result in stress on a fetus that has nearly completed 9 months of fetal development?

As parturition nears, the levels of progesterone ______ and the levels of estrogen ______.

Chromosomes that are NOT associated with sex determination are known as

Developmental events are calculated from

The opening that connects the right and left atria in the fetal heart is the

Which gland is derived from both neural crest cells and mesoderm?

What term means that both alleles are different?

Which of the following chromosome anomalies can be found in either sex?

Which gland develops from an evagination of the ectoderm in the roof of the embryonic oral cavity?

The placenta and membranes surrounding the embryo develop from the

In females, the genital tubercle becomes the

The Human Organism

The Chemical Basis of Life

Cell Biology

Tissues

Integumentary System

Skeletal System: Bones and Bone Tissue

Skeletal System: Gross Anatomy

Joints and Movement

Muscular System: Histology and Physiology

Muscular System: Gross Anatomy

Functional Organization of Nervous Tissue

Spinal Cord and Spinal Nerves

Brain and Cranial Nerves

Integration of Nervous System Functions

The Special Senses

Autonomic Nervous System

Functional Organization of the Endocrine System

Endocrine Glands

Cardiovascular System: Blood

Cardiovascular System: the Heart

Cardiovascular System: Blood Vessels and Circulation

Lymphatic System and Immunity

Respiratory System

Digestive System

Nutrition, Metabolism, and Temperature Regulation

Urinary System

Water, Electrolyte, and Acid-Based Balance

Reproductive System

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As parturition nears, the levels of progesterone and the levels of estrogen .