Question 1

The period between the closure of the semilunar valve and the opening of the atrioventricular valves is called:

Accepted Answer

A)  atrial systole. 
B)  isovolumetric ventricular contraction. 
C)  isovolumetric ventricular relaxation. 
D)  passive ventricular filling. 
A)  atrial systole. 
B)  isovolumetric ventricular contraction. 
C)  isovolumetric ventricular relaxation. 
D)  passive ventricular filling.

Question 2

The best description of pulse pressure is the:

Accepted Answer

A)  pressure of blood against artery walls during ventricular systole. 
B)  pressure of blood against artery walls during ventricular diastole. 
C)  pressure of blood against artery walls during atrial systole. 
D)  difference between the systolic and the diastolic blood pressures. 
A)  pressure of blood against artery walls during ventricular systole. 
B)  pressure of blood against artery walls during ventricular diastole. 
C)  pressure of blood against artery walls during atrial systole. 
D)  difference between the systolic and the diastolic blood pressures.

Question 3

What are two functions that circulation control mechanisms must accomplish?

Accepted Answer

Circulation control mechanisms within th

Question 4

Which of the following is not a means by which venous blood is returned to the heart?

Accepted Answer

A)  The semilunar valves in the vein 
B)  Respiration, which reduces pressure in the thorax and increases pressure in the abdomen 
C)  The contraction of skeletal muscles pushing blood through the veins 
D)  All the above are means by which venous blood returns to the heart. 
A)  The semilunar valves in the vein 
B)  Respiration, which reduces pressure in the thorax and increases pressure in the abdomen 
C)  The contraction of skeletal muscles pushing blood through the veins 
D)  All the above are means by which venous blood returns to the heart.

Question 5

Name and explain the relationship among the variables that impact the minute volume of blood.

Accepted Answer

The minute volume of blood is influenced

Question 6

Name and give the location of five places in the body where a pulse can be felt.

Accepted Answer

A pulse can be felt at several locations

Question 7

Explain why a transplanted heart would beat even if the nerves to the heart were not reconnected.

Accepted Answer

A transplanted heart can continue to bea

Question 8

Vasomotor control mechanisms influence:

Accepted Answer

A)  diameter of capillaries. 
B)  stroke volume. 
C)  cardiac output. 
D)  diameter of arterioles. 
A)  diameter of capillaries. 
B)  stroke volume. 
C)  cardiac output. 
D)  diameter of arterioles.

Question 9

Which of the following events would tend to cause a decrease in blood viscosity?

Accepted Answer

A)  An increase in red blood cell count 
B)  Marked anemia 
C)  An increase in blood protein concentration 
D)  Both A and C 
A)  An increase in red blood cell count 
B)  Marked anemia 
C)  An increase in blood protein concentration 
D)  Both A and C

Question 10

Which of the following tasks must the circulation control mechanism accomplish?

Accepted Answer

A)  Maintain circulation. 
B)  Vary the volume and distribution of the blood circulated. 
C)  Make sure that all cells receive the same amount of blood to maintain nutrient and oxygen levels. 
D)  Both A and B are correct. 
A)  Maintain circulation. 
B)  Vary the volume and distribution of the blood circulated. 
C)  Make sure that all cells receive the same amount of blood to maintain nutrient and oxygen levels. 
D)  Both A and B are correct.

Question 11

Which of the following is not a true statement about cardiac output?

Accepted Answer

A)  It can be calculated by dividing the stroke volume by the heart rate. 
B)  It is the amount of blood that flows out of a ventricle per unit of time. 
C)  In can be computed by using Fick's Formula. 
D)  All of the above are true statements about cardiac output. 
A)  It can be calculated by dividing the stroke volume by the heart rate. 
B)  It is the amount of blood that flows out of a ventricle per unit of time. 
C)  In can be computed by using Fick's Formula. 
D)  All of the above are true statements about cardiac output.

Question 12

Match each ECG wave or complex with the corresponding action in the cardiac cycle.
-ventricular depolarization

Accepted Answer

A) QRS complex 
B) P wave 
C) T wave 
D) U wave 
A) QRS complex 
B) P wave 
C) T wave 
D) U wave

Question 13

List two major factors that promote the return of venous blood to the heart.Explain how each facilitates venous return.

Accepted Answer

Two major factors that promote the retur

Question 14

Explain what occurs during atrial systole,isovolumetric ventricular contraction,and isovolumetric ventricular relaxation.

Accepted Answer

During atrial systole, the atria contrac

Question 15

Which of the following statements is true?

Accepted Answer

A)  Stimulation by the vagus nerve slows the heart rate. 
B)  Stimulation by the cardiac nerve slows the heart rate. 
C)  Parasympathetic stimulation occurs through the cardiac nerve. 
D)  Both B and C are true. 
A)  Stimulation by the vagus nerve slows the heart rate. 
B)  Stimulation by the cardiac nerve slows the heart rate. 
C)  Parasympathetic stimulation occurs through the cardiac nerve. 
D)  Both B and C are true.

Question 16

List two factors that affect peripheral resistance.Explain how these factors influence arterial blood pressure.In normal blood flow,where is the major peripheral resistance encountered?

Accepted Answer

Two factors that affect peripheral resis

Question 17

Atrial systole causes blood to:

Accepted Answer

A)  leave the heart. 
B)  move through the semilunar valves. 
C)  move through the cuspid valves. 
D)  do both A and B. 
A)  leave the heart. 
B)  move through the semilunar valves. 
C)  move through the cuspid valves. 
D)  do both A and B.

Question 18

Match each ECG wave or complex with the corresponding action in the cardiac cycle.
-late repolarization of the Purkinje fibers,larger with hypokalemia

Accepted Answer

A) QRS complex 
B) P wave 
C) T wave 
D) U wave 
A) QRS complex 
B) P wave 
C) T wave 
D) U wave

Question 19

Explain the role of the lymphatic system in maintaining blood volume.

Accepted Answer

The lymphatic system plays a crucial rol

Question 20

The pulse in the wrist is felt over which artery?

Accepted Answer

A)  Radial 
B)  Brachial 
C)  Ulnar 
D)  Axillary 
A)  Radial 
B)  Brachial 
C)  Ulnar 
D)  Axillary

Exam 22: B: Physiology of the Cardiovascular System

The period between the closure of the semilunar valve and the opening of the atrioventricular valves is called:

The best description of pulse pressure is the:

What are two functions that circulation control mechanisms must accomplish?

Which of the following is not a means by which venous blood is returned to the heart?

Name and explain the relationship among the variables that impact the minute volume of blood.

Name and give the location of five places in the body where a pulse can be felt.

Explain why a transplanted heart would beat even if the nerves to the heart were not reconnected.

Vasomotor control mechanisms influence:

Which of the following events would tend to cause a decrease in blood viscosity?

Which of the following tasks must the circulation control mechanism accomplish?

Which of the following is not a true statement about cardiac output?

Match each ECG wave or complex with the corresponding action in the cardiac cycle. -ventricular depolarization

List two major factors that promote the return of venous blood to the heart.Explain how each facilitates venous return.

Explain what occurs during atrial systole,isovolumetric ventricular contraction,and isovolumetric ventricular relaxation.

Which of the following statements is true?

List two factors that affect peripheral resistance.Explain how these factors influence arterial blood pressure.In normal blood flow,where is the major peripheral resistance encountered?

Atrial systole causes blood to:

Match each ECG wave or complex with the corresponding action in the cardiac cycle. -late repolarization of the Purkinje fibers,larger with hypokalemia

Explain the role of the lymphatic system in maintaining blood volume.

The pulse in the wrist is felt over which artery?

A: Organization of the Body

B: Organization of the Body

A: The Chemical Basis of Life

B: The Chemical Basis of Life

A: Anatomy of Cells

B: Anatomy of Cells

Physiology of Cells

Cell Growth and Reproduction

Tissues

A: Skin and Its Appendages

B: Skin and Its Appendages

A: Skeletal Tissues

B: Skeletal Tissues

Skeletal System

A: Articulations

B: Articulations

A: Anatomy of the Muscular System

B: Anatomy of the Muscular System

A: Physiology of the Muscular System

B: Physiology of the Muscular System

A: Nervous System Cells

B: Nervous System Cells

A: Central Nervous System

B: Central Nervous System

Peripheral Nervous System

Autonomic Nervous System

A: Sense Organs

B: Sense Organs

Endocrine System

Endocrine Glands

Blood

Anatomy of the Cardiovascular System

A: Physiology of the Cardiovascular System

Lymphatic System

A: Immune System

B: Immune System

Stress

Anatomy of the Respiratory System

A: Physiology of the Respiratory System

B: Physiology of the Respiratory System

A: Anatomy of the Digestive System

B: Anatomy of the Digestive System

A: Physiology of the Digestive System

B: Physiology of the Digestive System

A: Nutrition and Metabolism

B: Nutrition and Metabolism

A: Urinary System

B: Urinary System

Fluid and Electrolyte Balance

Acid-Base Balance

Male Reproductive System

A: Female Reproductive System

B: Female Reproductive System

A: Growth and Development

B: Growth and Development

A: Genetics and Heredity

B: Genetics and Heredity

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