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WorksheetsCardiovascular System Physiology 1. Quiz
Total questions: 39
Worksheet time: 33mins
What is the main function of the cardiovascular system?
To regulate body temperature
To filter waste from the blood
To rapidly transport blood to every living cell in the body
To transport nutrients to the brain
What is the weight range of a human heart?
150-200 g
250-350 g
100-150 g
400-500 g
Which layer of the heart is composed of myocardium?
Myocardium
Endocardium
Pericardium
Epicardium
What type of blood do the right atrium and ventricle receive?
Deoxygenated blood
Oxygen-poor blood
Oxygenated blood
Nutrient-rich blood
What is the function of the atrioventricular valves?
To regulate heart rate
To separate the atria from the ventricles
To prevent backflow of blood
To allow blood to flow in both directions
Which valve controls blood flow from the left atrium to the left ventricle?
Mitral valve
Pulmonary valve
Tricuspid valve
Aortic valve
What is the primary role of the pulmonary circuit?
To move blood between the heart and the lungs
To transport oxygenated blood to the body
To supply blood to the coronary arteries
To regulate blood pressure
What is the normal heart rate range for adults?
40-60 bpm
120-140 bpm
100-120 bpm
60-100 bpm
What is the term for the contraction phase of the heart?
Diastole
Systole
Arrhythmia
Fibrillation
Which part of the heart is known as the pacemaker?
Purkinje fibers
Sinoatrial (SA) node
Bundle of His
AV node
What does the QRS complex in an ECG represent?
Ventricular repolarization
Ventricular depolarization
Atrial depolarization
Atrial repolarization
What is the primary cause of a heart attack?
Coronary artery dilation
Arrhythmia
Blockage of blood flow to the heart
High blood pressure
What is the term for a slower than normal heart rate?
Tachycardia
Bradycardia
Arrhythmia
Fibrillation
Which of the following is a risk factor for heart failure?
Regular exercise
High blood pressure
Healthy diet
Low cholesterol
What is the role of the coronary arteries?
To regulate heart rate
To supply blood to the lungs
To provide blood and oxygen to the heart muscle
To transport blood to the brain
What is the primary function of the valves in the heart?
To prevent backflow of blood
To regulate blood pressure
To allow blood to flow in both directions
To increase heart rate
What is the main purpose of the electrocardiogram (ECG)?
To measure blood pressure
To record the electrical activity of the heart
To assess heart muscle strength
To evaluate blood flow
What does the T wave in an ECG indicate?
Atrial repolarization
Ventricular repolarization
Ventricular depolarization
Atrial depolarization
Which of the following is NOT a type of heart valve?
Coronary valve
Semilunar valve
Bicuspid valve
Tricuspid valve
What is the role of the AV node in the heart?
To initiate the heartbeat
To coordinate the contraction of the ventricles
To slow down the electrical signal
To increase heart rate
What is the primary function of the left ventricle?
To pump oxygenated blood to the body
To receive blood from the lungs
To regulate heart rhythm
To pump oxygen-poor blood to the lungs
What is the term for the heart's ability to generate its own electrical impulses?
Chronotropy
Arrhythmia
Autorhythm
Dromotropy
What is the primary cause of myocardial infarction?
Blockage of coronary arteries
High cholesterol
Arrhythmia
Hypertension
What is the function of the Purkinje fibers?
To initiate heart contractions
To conduct electrical impulses to the ventricles
To regulate heart rate
To supply blood to the heart muscle
What is the effect of epinephrine on heart rate?
Regulates heart rhythm
Decreases heart rate
Has no effect
Increases heart rate
What is the primary role of the systemic circuit?
To supply oxygenated blood to the body
To transport blood to the lungs
To regulate blood pressure
To remove waste from the heart
What is the term for the relaxation phase of the heart?
Diastole
Systole
Fibrillation
Arrhythmia
What is the primary function of the right ventricle?
To receive blood from the body
To pump oxygenated blood to the body
To pump oxygen-poor blood to the lungs
To regulate heart rate
What is the role of intercalated discs in cardiac muscle?
To regulate heart rate
To connect muscle fibers
To increase muscle strength
To separate muscle cells
What is the primary cause of heart failure?
Narrowed arteries
Low blood pressure
High cholesterol
Arrhythmia
What is the term for the electrical signals that drive the heart's contractions?
Rhythmic signals
Pacemaker signals
Action potentials
Conduction impulses
What is the primary function of the aorta?
To supply blood to the lungs
To regulate blood pressure
To return deoxygenated blood to the heart
To carry oxygenated blood away from the heart
What is the role of the sinoatrial (SA) node in the heart?
To initiate the electrical impulses for heartbeats
To coordinate the contraction of the atria
To slow down the heart rate
To prevent backflow of blood
What is the significance of the cardiac cycle?
It prevents arrhythmias
It describes the sequence of events in one heartbeat
It controls the heart rate
It regulates blood pressure
The nurse is assessing the client’s electrocardiography (ECG). What does the P wave on the ECG tracing represent?
Contraction of the atria
Contraction of the ventricles
Depolarization of the atria
Depolarization of the ventricles
The nurse is reviewing a patient’s electrocardiogram. Which wave should the nurse recognize as being the first positive wave in a normal cardiac cycle?
P wave
Q wave
R wave
S wave
The nurse is determining the functioning of a patient’s sinoatrial node. How many times per minute should the nurse expect the node to normally fire?
20 to 40
25 to 55
40 to 85
60 to 100
What part of the heart carries oxygenated blood from the lungs to the heart?
Pulmonary Vein
Capillaries
Pulmonary Artery
Right Atrium
What is an average resting HR?
40-100
50-100
60-100
70-100
