Question 1

Atrial depolarization causes the _________.

Accepted Answer

A)  P wave 
B)  QRS complex 
C)  T wave 
D)  first heart sound 
E)  quiescent period 
A)  P wave 
B)  QRS complex 
C)  T wave 
D)  first heart sound 
E)  quiescent period

Question 2

Pericardial fluid is found between the __________ and the __________.

Accepted Answer

A)  visceral pericardium;myocardium 
B)  visceral pericardium;epicardium 
C)  parietal;visceral membranes 
D)  myocardium;endocardium 
E)  epicardium;myocardium 
A)  visceral pericardium;myocardium 
B)  visceral pericardium;epicardium 
C)  parietal;visceral membranes 
D)  myocardium;endocardium 
E)  epicardium;myocardium

Question 3

Which of the following is not a feature of cardiac muscle?

Accepted Answer

A)  They depend almost exclusively on aerobic respiration. 
B)  They are rich in glycogen. 
C)  They have larger than average mitochondria. 
D)  They are very rich in myoglobin. 
E)  They have about the same endurance as skeletal muscle fibers. 
A)  They depend almost exclusively on aerobic respiration. 
B)  They are rich in glycogen. 
C)  They have larger than average mitochondria. 
D)  They are very rich in myoglobin. 
E)  They have about the same endurance as skeletal muscle fibers.

Question 4

Blood in the heart chambers provides most of the myocardium's oxygen and nutrient needs.

Accepted Answer

A) True 
 B)False

Question 5

Which of the following directly stems from the ascending aorta before it branches into the circumflex branch and anterior interventricular branch?

Accepted Answer

A)  Right coronary artery 
B)  Great cardiac vein 
C)  Right coronary vein 
D)  Left coronary artery 
E)  Left coronary vein 
A)  Right coronary artery 
B)  Great cardiac vein 
C)  Right coronary vein 
D)  Left coronary artery 
E)  Left coronary vein

Question 6

The __________ are the superior chambers of the heart and the _________ are the inferior chambers of the heart.

Accepted Answer

A)  visceral percardia;parietal pericardia 
B)  ventricles;atria 
C)  atria;ventricles 
D)  left ventricles;right ventricles 
E)  left atria;right atria 
A)  visceral percardia;parietal pericardia 
B)  ventricles;atria 
C)  atria;ventricles 
D)  left ventricles;right ventricles 
E)  left atria;right atria

Question 7

The ventricles are almost empty at the end of ventricular diastole.

Accepted Answer

A) True 
 B)False

Question 8

The plateau in the action potential of cardiac muscle results from the action of __________.

Accepted Answer

A)  Na+ inflow 
B)  K+ inflow 
C)  K+ outflow 
D)  fast Ca2+ channels 
E)  slow Ca2+ channels 
A)  Na+ inflow 
B)  K+ inflow 
C)  K+ outflow 
D)  fast Ca2+ channels 
E)  slow Ca2+ channels

Question 9

The systemic circuit contains oxygen-rich blood only.

Accepted Answer

A) True 
 B)False

Question 10

Parasympathetic stimulation reduces heart rate.

Accepted Answer

A) True 
 B)False

Question 11

Which of the following is a feature shared by cardiac muscle and skeletal muscle?

Accepted Answer

A)  Muscle fiber striations 
B)  Dependence upon nervous stimulation 
C)  Communication via electrical (gap)junctions 
D)  Intercalated discs 
E)  Autorhythmicity 
A)  Muscle fiber striations 
B)  Dependence upon nervous stimulation 
C)  Communication via electrical (gap)junctions 
D)  Intercalated discs 
E)  Autorhythmicity

Question 12

After entering the right atrium,the furthest a red blood cell can travel is the _________.

Accepted Answer

A)  right ventricle 
B)  pulmonary trunk 
C)  superior vena cava 
D)  ascending aorta 
E)  left atrium 
A)  right ventricle 
B)  pulmonary trunk 
C)  superior vena cava 
D)  ascending aorta 
E)  left atrium

Question 13

Endurance athletes commonly have a resting heart rate as low as 40 bpm,and a stroke volume as low as 50 mL/beat.

Accepted Answer

A) True 
 B)False

Question 14

When the ventricles relax,the __________ valve prevents backflow of blood into the left ventricle.

Accepted Answer

A)  aortic 
B)  pulmonary 
C)  mitral 
D)  left AV 
E)  right AV 
A)  aortic 
B)  pulmonary 
C)  mitral 
D)  left AV 
E)  right AV

Question 15

The volume of blood ejected by each ventricle in one minute is called the __________.

Accepted Answer

A)  cardiac reserve 
B)  preload 
C)  afterload 
D)  stroke volume 
E)  cardiac output 
A)  cardiac reserve 
B)  preload 
C)  afterload 
D)  stroke volume 
E)  cardiac output

Exam 19: The Circulatory System: Heart

Atrial depolarization causes the _________.

Pericardial fluid is found between the __________ and the __________.

Which of the following is not a feature of cardiac muscle?

Blood in the heart chambers provides most of the myocardium's oxygen and nutrient needs.

Which of the following directly stems from the ascending aorta before it branches into the circumflex branch and anterior interventricular branch?

The __________ are the superior chambers of the heart and the _________ are the inferior chambers of the heart.

The ventricles are almost empty at the end of ventricular diastole.

The plateau in the action potential of cardiac muscle results from the action of __________.

The systemic circuit contains oxygen-rich blood only.

Parasympathetic stimulation reduces heart rate.

Which of the following is a feature shared by cardiac muscle and skeletal muscle?

After entering the right atrium,the furthest a red blood cell can travel is the _________.

Endurance athletes commonly have a resting heart rate as low as 40 bpm,and a stroke volume as low as 50 mL/beat.

When the ventricles relax,the __________ valve prevents backflow of blood into the left ventricle.

The volume of blood ejected by each ventricle in one minute is called the __________.

Major Themes of Anatomy and Physiology

The Chemistry of Life

Cellular Form and Function

Genetics of Cellular Function

Histology

The Integumentary System

Bone Tissue

The Skeletal System

Joints

The Muscular System

Muscular Tissue

Nervous Tissue

The Spinal Cord,spinal Nerves,and Somatic Reflexes

The Brain and Cranial Nerves

The Autonomic Nervous System and Visceral Reflexes

Sense Organs

The Endocrine System

The Circulatory System: Blood

The Circulatory System: Blood Vessels and Circulation

The Lymphatic and Immune Systems

The Respiratory System

The Urinary System

Fluid, electrolyte, and Acidbase Balance

The Digestive System

Nutrition and Metabolism

The Male Reproductive System

The Female Reproductive System

Human Development and Aging

Atlas a General Orientation to Human Anatomy

Filters

Pericardial fluid is found between the and the .

The __ are the superior chambers of the heart and the _ are the inferior chambers of the heart.