Question 1

Match the following with the waves, segments, or intervals on the electrocardiogram (ECG).
  
-Identify the P -R interval.

Accepted Answer

Question 2

Discuss the location and function of valves in the heart.

Accepted Answer

Right and left atrioventricular valves,

Question 3

The P wave on an electrocardiogram (ECG) represents the depolarization of cells in the:

Accepted Answer

A)  atria. 
B)  ventricles. 
C)  sinoatrial (S
A)  node. 
D)  atrioventricular (AV) node. 
A)  atria. 
B)  ventricles. 
C)  sinoatrial (S
A)  node. 
D)  atrioventricular (AV) node.

Question 4

What is the function of the valves in the heart?

Accepted Answer

A)  prevent backflow of blood through the heart 
B)  invert during contraction of the ventricles 
C)  promote contraction of the ventricles 
D)  eliminate pressure variances within the heart 
A)  prevent backflow of blood through the heart 
B)  invert during contraction of the ventricles 
C)  promote contraction of the ventricles 
D)  eliminate pressure variances within the heart

Question 5

Which wave on the electrocardiogram (ECG) represents ventricular depolarization?

Accepted Answer

A)  T wave 
B)  QRS wave 
C)  R -R interval 
D)  P wave 
A)  T wave 
B)  QRS wave 
C)  R -R interval 
D)  P wave

Question 6

Describe the pathway of the action potential through the cardiac conduction system.

Accepted Answer

Under normal conditions, the sinoatrial

Question 7

Calculate cardiac output if the heart rate is 85 beats/minute, end -diastolic volume (EDV) is 130 ml, and end -systolic volume (ESV) is 60 ml.

Accepted Answer

A)  5100 ml/min 
B)  5950 ml/min 
C)  7800 ml/min 
D)  16,140 ml/min 
A)  5100 ml/min 
B)  5950 ml/min 
C)  7800 ml/min 
D)  16,140 ml/min

Question 8

Stroke volume (SV) can be calculated by subtracting the end -diastolic volume (EDV) from the end -systolic volume (ESV).

Accepted Answer

A) True 
 B)False

Question 9

Calculate cardiac output given an end -diastolic volume of 140 ml, an end -systolic volume of 60 ml, and a heart rate of 85 beats/minute.

Accepted Answer

First, determine stroke volume. Stroke v

Question 10

There are two phases of the cardiac cycle in which all four heart valves are open: isovolumetric contraction phase and the isovolumetric relaxation phase.

Accepted Answer

A) True 
 B)False

Question 11

Trace the pathway of blood flow through the heart. Begin and end the pathway with the systemic capillaries.

Accepted Answer

The blood flow through the hea

Question 12

Explain the roles of the right side and left side of the heart as two separate pumps.

Accepted Answer

The right side of the heart is sometimes

Question 13

Match the following structures with the internal heart anatomy.
  
-Identify the interventricular septum.

Accepted Answer

The answer of Match the following structures with the internal...

Question 14

Explain how contractile cells and pacemaker cells differ in cardiac muscle tissue.

Accepted Answer

Contractile cells are striated cardiac m

Question 15

Both the left and right atria receive blood from:

Accepted Answer

A)  the ventricles. 
B)  arteries. 
C)  veins. 
D)  the lungs. 
A)  the ventricles. 
B)  arteries. 
C)  veins. 
D)  the lungs.

Question 16

What characteristic differentiates cardiac muscle cells from skeletal muscle cells?

Accepted Answer

A)  sarcoplasmic reticulum 
B)  excitability 
C)  striations 
D)  intercalated discs 
A)  sarcoplasmic reticulum 
B)  excitability 
C)  striations 
D)  intercalated discs

Question 17

Match the following with the waves, segments, or intervals on the electrocardiogram (ECG).
  
-Identify the S -T segment.

Accepted Answer

Question 18

Match the following with the waves, segments, or intervals on the electrocardiogram (ECG).
  
-Identify the wave representing depolarization of all cells within the atria except the SA node.

Accepted Answer

The answer of Match the following with the waves, segments,...

Question 19

What surface groove separates the right and left ventricles?

Accepted Answer

A)  interatrial septum 
B)  interventricular septum 
C)  atrioventricular sulcus 
D)  interventricular sulcus 
A)  interatrial septum 
B)  interventricular septum 
C)  atrioventricular sulcus 
D)  interventricular sulcus

Question 20

During what part of the action potential will calcium ions enter the contractile cell?

Accepted Answer

A)  plateau phase 
B)  rapid depolarization phase 
C)  repolarization phase 
D)  initial repolarization phase 
A)  plateau phase 
B)  rapid depolarization phase 
C)  repolarization phase 
D)  initial repolarization phase

Exam 17: The Cardiovascular System I: the Heart

Match the following with the waves, segments, or intervals on the electrocardiogram (ECG). -Identify the P -R interval.

Discuss the location and function of valves in the heart.

The P wave on an electrocardiogram (ECG) represents the depolarization of cells in the:

What is the function of the valves in the heart?

Which wave on the electrocardiogram (ECG) represents ventricular depolarization?

Describe the pathway of the action potential through the cardiac conduction system.

Calculate cardiac output if the heart rate is 85 beats/minute, end -diastolic volume (EDV) is 130 ml, and end -systolic volume (ESV) is 60 ml.

Stroke volume (SV) can be calculated by subtracting the end -diastolic volume (EDV) from the end -systolic volume (ESV).

Calculate cardiac output given an end -diastolic volume of 140 ml, an end -systolic volume of 60 ml, and a heart rate of 85 beats/minute.

There are two phases of the cardiac cycle in which all four heart valves are open: isovolumetric contraction phase and the isovolumetric relaxation phase.

Trace the pathway of blood flow through the heart. Begin and end the pathway with the systemic capillaries.

Explain the roles of the right side and left side of the heart as two separate pumps.

Match the following structures with the internal heart anatomy. -Identify the interventricular septum.

Explain how contractile cells and pacemaker cells differ in cardiac muscle tissue.

Both the left and right atria receive blood from:

What characteristic differentiates cardiac muscle cells from skeletal muscle cells?

Match the following with the waves, segments, or intervals on the electrocardiogram (ECG). -Identify the S -T segment.

Match the following with the waves, segments, or intervals on the electrocardiogram (ECG). -Identify the wave representing depolarization of all cells within the atria except the SA node.

What surface groove separates the right and left ventricles?

During what part of the action potential will calcium ions enter the contractile cell?

Introduction to Anatomy Physiology

The Chemistry of Life

The Cell

Histology

The Integumentary System

Bones and Bone Tissue

The Skeletal System

Articulations

The Muscular System

Muscle Tissue Physiology

Introduction to the Nervous System Nervous Tissue

The Central Nervous System

The Peripheral Nervous System

The Autonomic Nervous System Homeostasis

The Special Senses

The Endocrine System

The Cardiovascular System Ii: Blood Vessels

Blood

The Lymphatic System Immunity

The Respiratory System

The Digestive System

Metabolism Nutrition

The Urinary System

Fluid, Electrolyte Acid-Base Homeostasis

The Reproductive System

Development Heredity

Filters

Match the following with the waves, segments, or intervals on the electrocardiogram (ECG). -Identify the P ^-R interval.

Calculate cardiac output if the heart rate is 85 beats/minute, end ^-diastolic volume (EDV) is 130 ml, and end ^-systolic volume (ESV) is 60 ml.

Stroke volume (SV) can be calculated by subtracting the end ^-diastolic volume (EDV) from the end ^-systolic volume (ESV).

Calculate cardiac output given an end ^-diastolic volume of 140 ml, an end ^-systolic volume of 60 ml, and a heart rate of 85 beats/minute.

Match the following with the waves, segments, or intervals on the electrocardiogram (ECG). -Identify the S ^-T segment.