Question 1

Failure of the neural tube to close in the region of the head results in ________.

Accepted Answer

A)  anencephaly 
B)  ventricular enlargement 
C)  cleft palate 
D)  soft spots on the skull 
E)  hydrocephaly 
A)  anencephaly 
B)  ventricular enlargement 
C)  cleft palate 
D)  soft spots on the skull 
E)  hydrocephaly

Question 2

Down Syndrome is an example of an aneuploidy called ________.

Accepted Answer

A)  monosomy 21 
B)  trisomy 21 
C)  monosomy 23 
D)  trisomy 17 
E)  disomy 21 
A)  monosomy 21 
B)  trisomy 21 
C)  monosomy 23 
D)  trisomy 17 
E)  disomy 21

Question 3

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

Accepted Answer

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

Question 4

Arm and legs buds appear at about 28 days from

Accepted Answer

A)  the coelom. 
B)  apical ectodermal ridges. 
C)  somitomeres. 
D)  neural crest cells. 
A)  the coelom. 
B)  apical ectodermal ridges. 
C)  somitomeres. 
D)  neural crest cells.

Question 5

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

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 6

When stretch receptors in the cervix are stimulated by the continually increasing pressure of the fetus, afferent neurons send impulses to the maternal hypothalamus resulting in

Accepted Answer

A)  increased estrogen production. 
B)  increased oxytocin production. 
C)  increased fetal CRH production. 
D)  increased growth in the size of the placenta. 
E)  decreased oxytocin production. 
A)  increased estrogen production. 
B)  increased oxytocin production. 
C)  increased fetal CRH production. 
D)  increased growth in the size of the placenta. 
E)  decreased oxytocin production.

Question 7

Many gerontologists refer to walking as one of the most important anti-aging activities to prolong life. This is because a daily 30-minute walk

Accepted Answer

A)  increases blood pressure. 
B)  improves circulation. 
C)  promotes anaerobic metabolism. 
D)  increases urine output. 
E)  increases peripheral resistance. 
A)  increases blood pressure. 
B)  improves circulation. 
C)  promotes anaerobic metabolism. 
D)  increases urine output. 
E)  increases peripheral resistance.

Question 8

A non-albino female who is a carrier for the albino allele (Aa), mates with an albino (aa) male. What is the probability that their child will be albino?

Accepted Answer

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

Question 9

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 10

A female that is a carrier for X-linked color-blindness has a daughter with a male that is colorblind. What is the probability that the daughter is colorblind?

Accepted Answer

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

Question 11

The single layer of cells that surrounds the blastocele is the ________.

Accepted Answer

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

Question 12

A neonate who has a blue tint to her skin, has a pulse of less than 100 bpm, and has an irregular rate of breathing could score an APGAR score of 8.

Accepted Answer

A) True 
 B)False

Question 13

A patent ductus arteriosus means that the ________ did not close.

Accepted Answer

A)  intraatrial septum 
B)  intraventricular septum 
C)  connection between the pulmonary trunk and the aorta 
D)  connection between the inferior vena cava and the abdominal aorta 
E)  umbilical arteries and veins 
A)  intraatrial septum 
B)  intraventricular septum 
C)  connection between the pulmonary trunk and the aorta 
D)  connection between the inferior vena cava and the abdominal aorta 
E)  umbilical arteries and veins

Question 14

Which of the following is NOT a possible route for neural crest cells?

Accepted Answer

A)  Melanocytes 
B)  Autonomic ganglion neurons 
C)  Adrenal cortex 
D)  Sensory ganglia 
E)  Enteric nervous system neurons 
A)  Melanocytes 
B)  Autonomic ganglion neurons 
C)  Adrenal cortex 
D)  Sensory ganglia 
E)  Enteric nervous system neurons

Question 15

Fusion of the male and female pronuclei

Accepted Answer

A)  results in an oocyte forming. 
B)  restores the diploid number of chromosomes. 
C)  occurs before ovulation. 
D)  results in a haploid cell forming. 
E)  results in a total of 23 chromosomes. 
A)  results in an oocyte forming. 
B)  restores the diploid number of chromosomes. 
C)  occurs before ovulation. 
D)  results in a haploid cell forming. 
E)  results in a total of 23 chromosomes.

Question 16

Which of the following organ systems is derived from all three germ layers?

Accepted Answer

A)  Nervous 
B)  Cardiovascular 
C)  Endocrine 
D)  Integumentary 
E)  Skeletal 
A)  Nervous 
B)  Cardiovascular 
C)  Endocrine 
D)  Integumentary 
E)  Skeletal

Question 17

Which of the following is derived from endoderm?

Accepted Answer

A)  Brain 
B)  Muscle 
C)  Epidermis of the skin 
D)  Mucosa of the digestive tract 
E)  Cardiovascular system 
A)  Brain 
B)  Muscle 
C)  Epidermis of the skin 
D)  Mucosa of the digestive tract 
E)  Cardiovascular system

Question 18

Which of the following fetal shunts bypasses the fetal lungs?

Accepted Answer

A)  Ductus arteriosus 
B)  Ductus venosus 
C)  Umbilical arteries 
D)  Umbilical vein 
E)  Ductus byosus 
A)  Ductus arteriosus 
B)  Ductus venosus 
C)  Umbilical arteries 
D)  Umbilical vein 
E)  Ductus byosus

Question 19

Which of the following events near the end of pregnancy might indicate parturition is near?

Accepted Answer

A)  The cervix gradually constricts. 
B)  The uterus begins regular contractions. 
C)  The amniotic sac becomes edematous. 
D)  The fetal heart rate increases to greater than 160 beats per minute. 
E)  The cervix shrinks. 
A)  The cervix gradually constricts. 
B)  The uterus begins regular contractions. 
C)  The amniotic sac becomes edematous. 
D)  The fetal heart rate increases to greater than 160 beats per minute. 
E)  The cervix shrinks.

Question 20

Which of the following is derived from ectoderm?

Accepted Answer

A)  Lens of the eye 
B)  Thymus gland 
C)  Tonsils 
D)  Urinary bladder 
E)  Dermis of skin 
A)  Lens of the eye 
B)  Thymus gland 
C)  Tonsils 
D)  Urinary bladder 
E)  Dermis of skin

Exam 29: Development, Growth, Aging, and Genetics

Failure of the neural tube to close in the region of the head results in ________.

Down Syndrome is an example of an aneuploidy called ________.

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

Arm and legs buds appear at about 28 days from

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

When stretch receptors in the cervix are stimulated by the continually increasing pressure of the fetus, afferent neurons send impulses to the maternal hypothalamus resulting in

Many gerontologists refer to walking as one of the most important anti-aging activities to prolong life. This is because a daily 30-minute walk

A non-albino female who is a carrier for the albino allele (Aa), mates with an albino (aa) male. What is the probability that their child will be albino?

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

A female that is a carrier for X-linked color-blindness has a daughter with a male that is colorblind. What is the probability that the daughter is colorblind?

The single layer of cells that surrounds the blastocele is the ________.

A neonate who has a blue tint to her skin, has a pulse of less than 100 bpm, and has an irregular rate of breathing could score an APGAR score of 8.

A patent ductus arteriosus means that the ________ did not close.

Which of the following is NOT a possible route for neural crest cells?

Fusion of the male and female pronuclei

Which of the following organ systems is derived from all three germ layers?

Which of the following is derived from endoderm?

Which of the following fetal shunts bypasses the fetal lungs?

Which of the following events near the end of pregnancy might indicate parturition is near?

Which of the following is derived from ectoderm?

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

Filters

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