Question 1

Onset of labor may result from

Accepted Answer

A)  increased estrogen secretion by the placenta. 
B)  increased glucocorticoid secretion by the mother. 
C)  increased secretion of oxytocin by the fetus. 
D)  increased progesterone secretion by the placenta. 
E)  decreased prostaglandins. 
A)  increased estrogen secretion by the placenta. 
B)  increased glucocorticoid secretion by the mother. 
C)  increased secretion of oxytocin by the fetus. 
D)  increased progesterone secretion by the placenta. 
E)  decreased prostaglandins. A

Question 2

Which germ layer is the epidermis derived from?

Accepted Answer

A)  Ectoderm 
B)  Mesoderm 
C)  Endoderm 
A)  Ectoderm 
B)  Mesoderm 
C)  Endoderm A

Question 3

Which germ layer is most muscle derived from?

Accepted Answer

A)  Ectoderm 
B)  Mesoderm 
C)  Endoderm 
A)  Ectoderm 
B)  Mesoderm 
C)  Endoderm B

Question 4

The pleural and peritoneal cavities of the adult begin as part of the ________ cavity.

Accepted Answer

A)  cloacal 
B)  somatomeric 
C)  coelomic 
D)  apical 
E)  ventral 
A)  cloacal 
B)  somatomeric 
C)  coelomic 
D)  apical 
E)  ventral

Question 5

If a female who is a carrier for a genetic disorder has a child with a male who is also a carrier for the same disorder, the probability that their offspring will have the disorder is ________.

Accepted Answer

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

Question 6

Which term means that a person posses two different alleles at a particular locus?

Accepted Answer

A)  Homologous 
B)  Diploid 
C)  Homozygous 
D)  Heterozygous 
E)  Karyotype 
A)  Homologous 
B)  Diploid 
C)  Homozygous 
D)  Heterozygous 
E)  Karyotype

Question 7

Which of the following is correctly matched?

Accepted Answer

A)  First stage of labor - Fetus exits vagina 
B)  Second stage of labor - ends with cervix dilation to maximum 
C)  Third stage of labor - placenta expelled from uterus 
A)  First stage of labor - Fetus exits vagina 
B)  Second stage of labor - ends with cervix dilation to maximum 
C)  Third stage of labor - placenta expelled from uterus

Question 8

The placenta plays an important role in

Accepted Answer

A)  implantation. 
B)  onset of lactation. 
C)  beginning of parturition. 
D)  provision of nutrients to the fetus. 
E)  insulating the fetus. 
A)  implantation. 
B)  onset of lactation. 
C)  beginning of parturition. 
D)  provision of nutrients to the fetus. 
E)  insulating the fetus.

Question 9

Through what structure do epiblast cells migrate to form the mesoderm?

Accepted Answer

A)  Lacunae 
B)  Chorionic villi 
C)  Hypoblast 
D)  Primitive streak 
E)  Blastocele 
A)  Lacunae 
B)  Chorionic villi 
C)  Hypoblast 
D)  Primitive streak 
E)  Blastocele

Question 10

Which gland originates as two evaginations from the duodenum?

Accepted Answer

A)  Anterior pituitary 
B)  Posterior pituitary 
C)  Thyroid gland 
D)  Adrenal glands 
E)  Pancreas 
A)  Anterior pituitary 
B)  Posterior pituitary 
C)  Thyroid gland 
D)  Adrenal glands 
E)  Pancreas

Question 11

Placenta previa occurs when

Accepted Answer

A)  a normally placed placenta tears away from the uterine wall. 
B)  the placenta is formed too early. 
C)  implantation occurs close to the cervix. 
D)  implantation occurs in the fundus of the uterus. 
A)  a normally placed placenta tears away from the uterine wall. 
B)  the placenta is formed too early. 
C)  implantation occurs close to the cervix. 
D)  implantation occurs in the fundus of the uterus.

Question 12

Aging of the immune system makes older people more susceptible to cancer and infectious disease because of a decline in ________.

Accepted Answer

A)  alpha and beta globulins 
B)  red blood cells and platelets 
C)  complement proteins 
D)  prothrombin and fibrinogen 
E)  antigen-presenting cells and helper T cells 
A)  alpha and beta globulins 
B)  red blood cells and platelets 
C)  complement proteins 
D)  prothrombin and fibrinogen 
E)  antigen-presenting cells and helper T cells

Question 13

An infant born with a gestational age of 254 days would be considered ________.

Accepted Answer

A)  premature 
B)  normal maturity 
C)  postmature 
D)  immature 
E)  None of the choices are correct. 
A)  premature 
B)  normal maturity 
C)  postmature 
D)  immature 
E)  None of the choices are correct.

Question 14

Which of the following is not a known cause of congenital anomalies?

Accepted Answer

A)  Infectious disease in the mother during pregnancy 
B)  A genetic disorder 
C)  Exposure to teratogens during pregnancy 
D)  Smoking during lactation 
E)  Smoking during pregnancy 
A)  Infectious disease in the mother during pregnancy 
B)  A genetic disorder 
C)  Exposure to teratogens during pregnancy 
D)  Smoking during lactation 
E)  Smoking during pregnancy

Question 15

Neonate is the term used to refer to a baby

Accepted Answer

A)  in the 24-48 hours preceding birth. 
B)  in the 24-48 hours after birth. 
C)  during the first month after birth. 
D)  during the six months after birth. 
E)  during the first year after birth. 
A)  in the 24-48 hours preceding birth. 
B)  in the 24-48 hours after birth. 
C)  during the first month after birth. 
D)  during the six months after birth. 
E)  during the first year after birth.

Question 16

Which genetic disorder is caused by having three chromosomes 21?

Accepted Answer

A)  Albinism 
B)  Sickle cell disease 
C)  Hemophilia 
D)  Down syndrome 
E)  Achondroplasia 
A)  Albinism 
B)  Sickle cell disease 
C)  Hemophilia 
D)  Down syndrome 
E)  Achondroplasia

Question 17

Cells of the neuroectoderm become all of the following EXCEPT the ________.

Accepted Answer

A)  brain 
B)  spinal cord 
C)  postganglionic autonomic neurons 
D)  posterior pituitary gland 
A)  brain 
B)  spinal cord 
C)  postganglionic autonomic neurons 
D)  posterior pituitary gland

Question 18

The specific location of a gene on a chromosome is its ________.

Accepted Answer

A)  homolog 
B)  genotype 
C)  phenotype 
D)  allele 
E)  locus 
A)  homolog 
B)  genotype 
C)  phenotype 
D)  allele 
E)  locus

Question 19

Which of the following systems shows the least overall decline due to aging?

Accepted Answer

A)  Muscular system 
B)  Endocrine system 
C)  Integumentary system 
D)  Reproductive system 
E)  Urinary system 
A)  Muscular system 
B)  Endocrine system 
C)  Integumentary system 
D)  Reproductive system 
E)  Urinary system

Question 20

Which germ layer are the tonsils derived from?

Accepted Answer

A)  Ectoderm 
B)  Mesoderm 
C)  Endoderm 
A)  Ectoderm 
B)  Mesoderm 
C)  Endoderm

Exam 29: Development, Growth, Aging, and Genetics

Onset of labor may result from

Which germ layer is the epidermis derived from?

Which germ layer is most muscle derived from?

The pleural and peritoneal cavities of the adult begin as part of the ________ cavity.

If a female who is a carrier for a genetic disorder has a child with a male who is also a carrier for the same disorder, the probability that their offspring will have the disorder is ________.

Which term means that a person posses two different alleles at a particular locus?

Which of the following is correctly matched?

The placenta plays an important role in

Through what structure do epiblast cells migrate to form the mesoderm?

Which gland originates as two evaginations from the duodenum?

Placenta previa occurs when

Aging of the immune system makes older people more susceptible to cancer and infectious disease because of a decline in ________.

An infant born with a gestational age of 254 days would be considered ________.

Which of the following is not a known cause of congenital anomalies?

Neonate is the term used to refer to a baby

Which genetic disorder is caused by having three chromosomes 21?

Cells of the neuroectoderm become all of the following EXCEPT the ________.

The specific location of a gene on a chromosome is its ________.

Which of the following systems shows the least overall decline due to aging?

Which germ layer are the tonsils derived from?

The Human Organism

The Chemical Basis of Life

Cell Biology

Tissues

Integumentary System

Skeletal System: Bones and Bone Tissue

Skeletal System: Gross Anatomy

Joint 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-Base Balance

Reproductive System

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