Question 1

What does figure "A" represent?

Accepted Answer

A) Cleavage of embryo 
B) Cleavage of zygote 
C) Cleavage of morula 
D) Cleavage of blastocyst 
E) Cleavage of fetus 
A) Cleavage of embryo 
B) Cleavage of zygote 
C) Cleavage of morula 
D) Cleavage of blastocyst 
E) Cleavage of fetus B

Question 2

In the process of fertilization,the sperm will fertilize the

Accepted Answer

A) follicle 
B) primary oocyte 
C) germ cell 
D) female gonad 
E) secondary oocyte 
A) follicle 
B) primary oocyte 
C) germ cell 
D) female gonad 
E) secondary oocyte E

Question 3

Labor cannot take place until all of which hormone's effects are diminished?

Accepted Answer

A) Estrogen 
B) Progesterone 
C) Testosterone 
D) Relaxin 
E) Inhibin 
A) Estrogen 
B) Progesterone 
C) Testosterone 
D) Relaxin 
E) Inhibin B

Question 4

Where are the fetal blood vessels in the figure?

Accepted Answer

A) C 
B) D 
C) E 
D) F 
E) G 
A) C 
B) D 
C) E 
D) F 
E) G

Question 5

Where is the amniotic cavity?

Accepted Answer

A) E 
B) D 
C) C 
D) B 
E) A 
A) E 
B) D 
C) C 
D) B 
E) A

Question 6

The hormone associated with a change in gait of a pregnant woman in the later stages of pregnancy is

Accepted Answer

A) estrogen 
B) human chorionic gonadotropin 
C) progesterone 
D) inhibin 
E) relaxin 
A) estrogen 
B) human chorionic gonadotropin 
C) progesterone 
D) inhibin 
E) relaxin

Question 7

When are the three primary germ layers established during pregnancy?

Accepted Answer

A) First week of development 
B) Second week of development 
C) Third week of development 
D) Fourth week of development 
E) Second month of development 
A) First week of development 
B) Second week of development 
C) Third week of development 
D) Fourth week of development 
E) Second month of development

Question 8

Which of the following is a function of the hormone corticotropin-releasing hormone?

Accepted Answer

A) Maintain endometrium of uterus during pregnancy 
B) Help prepare mammary glands for lactation 
C) Establish the timing of birth 
D) Increase flexibility of the pubic symphysis 
E) All of these are functions of CRH 
A) Maintain endometrium of uterus during pregnancy 
B) Help prepare mammary glands for lactation 
C) Establish the timing of birth 
D) Increase flexibility of the pubic symphysis 
E) All of these are functions of CRH

Question 9

Which of the terms below describes the development of an organism from an undifferentiated cell?

Accepted Answer

A) Conceptus 
B) Primordium 
C) Epigenesis 
D) Karyotype 
E) Fertilization age 
A) Conceptus 
B) Primordium 
C) Epigenesis 
D) Karyotype 
E) Fertilization age

Question 10

Which is the effector when oxytocin stimulates milk ejection?

Accepted Answer

A) glandular cells 
B) plasma cells 
C) neurosecretory cells 
D) myoepithelial cells 
E) all of these work together 
A) glandular cells 
B) plasma cells 
C) neurosecretory cells 
D) myoepithelial cells 
E) all of these work together

Question 11

How many pairs of 8pharyngeal arches form in the future head and neck region during the fourth week?

Accepted Answer

A) 2 
B) 3 
C) 4 
D) 5 
E) 6 
A) 2 
B) 3 
C) 4 
D) 5 
E) 6

Question 12

Gastrulation occurs at approximately which point after fertilization?

Accepted Answer

A) within days 
B) during first 2 weeks of embryonic period 
C) during third week of embryonic period 
D) during fourth week of embryonic period 
E) after the fifth week of embryonic period 
A) within days 
B) during first 2 weeks of embryonic period 
C) during third week of embryonic period 
D) during fourth week of embryonic period 
E) after the fifth week of embryonic period

Question 13

Which of the following is NOT produced from the mesoderm?

Accepted Answer

A) Melanocytes 
B) Skeletal muscle 
C) Cardiac muscle 
D) Blood vessels 
E) Lymphatic tissue 
A) Melanocytes 
B) Skeletal muscle 
C) Cardiac muscle 
D) Blood vessels 
E) Lymphatic tissue

Question 14

Which condition listed is a developmental abnormality due to mechanical forces that mold a part of the fetus over a prolonged period of time?

Accepted Answer

A) Emesis gravidarum 
B) Deformation 
C) Turner's syndrome 
D) Breech presentation 
E) Klinefelter's syndrome 
A) Emesis gravidarum 
B) Deformation 
C) Turner's syndrome 
D) Breech presentation 
E) Klinefelter's syndrome

Question 15

Describe the hormonal events surrounding parturition.

Accepted Answer

Fetal CRH secretion increases from about

Question 16

Which one represents the morula stage?

Accepted Answer

A) A 
B) B 
C) C 
D) D 
E) E 
A) A 
B) B 
C) C 
D) D 
E) E

Question 17

If a woman who recently gave birth wants to continue to nurse newborn infants,even if they are not hers,could she do this indefinitely? If possible,why can she continue to do so?

Accepted Answer

After delivery,prolactin levels will slo

Question 18

Explain how certain types of clothing may lead to male infertility.

Accepted Answer

There are many factors that may contribu

Question 19

Which of the following is the portion of the endometrium that lies between the embryo and the stratum basale?

Accepted Answer

A) Decidua basalis 
B) Decidua capsularis 
C) Decidua parietalis 
D) Lamina propria 
E) Adventitia 
A) Decidua basalis 
B) Decidua capsularis 
C) Decidua parietalis 
D) Lamina propria 
E) Adventitia

Question 20

Which cells are derived from the yolk sac and form a connective tissue layer?

Accepted Answer

A) A 
B) B 
C) E 
D) F 
E) G 
A) A 
B) B 
C) E 
D) F 
E) G

Exam 29: Development and Inheritance

What does figure "A" represent?

In the process of fertilization,the sperm will fertilize the

Labor cannot take place until all of which hormone's effects are diminished?

Where are the fetal blood vessels in the figure?

Where is the amniotic cavity?

The hormone associated with a change in gait of a pregnant woman in the later stages of pregnancy is

When are the three primary germ layers established during pregnancy?

Which of the following is a function of the hormone corticotropin-releasing hormone?

Which of the terms below describes the development of an organism from an undifferentiated cell?

Which is the effector when oxytocin stimulates milk ejection?

How many pairs of 8pharyngeal arches form in the future head and neck region during the fourth week?

Gastrulation occurs at approximately which point after fertilization?

Which of the following is NOT produced from the mesoderm?

Which condition listed is a developmental abnormality due to mechanical forces that mold a part of the fetus over a prolonged period of time?

Describe the hormonal events surrounding parturition.

Which one represents the morula stage?

If a woman who recently gave birth wants to continue to nurse newborn infants,even if they are not hers,could she do this indefinitely? If possible,why can she continue to do so?

Explain how certain types of clothing may lead to male infertility.

Which of the following is the portion of the endometrium that lies between the embryo and the stratum basale?

Which cells are derived from the yolk sac and form a connective tissue layer?

An Introduction to the Human Body

The Chemical Level of Organization

The Cellular Level of Organization

The Tissue Level of Organization

The Integumentary System

The Skeletal System: Bone Tissue

The Skeletal System: the Axial Skeleton

The Skeletal System: The Appendicular Skeleton

Joints

Muscular Tissue

The Muscular System

Nervous Tissue

The Spinal Cord and Spinal Nerves

The Brain and Cranial Nerves

The Autonomic Nervous System

Sensory, Motor, and Integrative Systems

The Special Senses

The Endocrine System

The Cardiovascular System: the Blood

The Cardiovascular System: the Heart

The Cardiovascular System: Blood Vessels and Hemodynamics

The Lymphatic System and Immunity

The Respiratory System

The Digestive System

Metabolism and Nutrition

The Urinary System

Fluid, Electrolyte, and Acidbase Homeostasis

The Reproductive Systems

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