WorksheetsCardiovascular System Physiology Quiz
Total questions: 53
Worksheet time: 29mins
What is the main function of the cardiovascular system?
To digest food
To produce hormones
To filter blood
To transport oxygen and nutrients
What is the weight range of the human heart?
150-200 g
250-350 g
500-600 g
400-450 g
Which layer of the heart is composed of myocardium?
Epicardium
Myocardium
Pericardium
Endocardium
What type of blood do the right atrium and ventricle receive?
Deoxygenated blood
Oxygen-poor blood
Nutrient-rich blood
Oxygenated blood
What is the function of the atrioventricular valves?
Allow blood to flow in both directions
Regulate heart rate
Control blood pressure
Prevent backflow of blood
Which valve controls blood flow from the left atrium to the left ventricle?
Mitral valve
Pulmonary valve
Aortic valve
Tricuspid valve
What is the primary role of the coronary arteries?
To carry oxygenated blood to the body
To supply blood to the lungs
To provide blood to the heart muscle
To transport blood to the brain
What is the term for the contraction phase of the heart?
Systole
Diastole
Arrhythmia
Fibrillation
What is the normal heart rate range for adults?
40-60 bpm
120-140 bpm
60-100 bpm
100-120 bpm
Which part of the heart is known as the pacemaker?
AV node
Bundle of His
SA node
Purkinje fibers
What does the QRS complex in an ECG represent?
Atrial depolarization
Atrial repolarization
Ventricular depolarization
Ventricular repolarization
What is the primary cause of a heart attack?
High blood pressure
Blockage of blood vessels
Heart valve disease
Arrhythmia
What is the term for a slower than normal heart rate?
Tachycardia
Bradycardia
Fibrillation
Arrhythmia
Which of the following is a type of heart valve?
Atrioventricular
Pulmonary
Mitral
All of the above
What is the role of the pulmonary circuit?
Transport nutrients to the cells
Transport blood to the heart
Transport deoxygenated blood to the lungs
Transport oxygenated blood to the body
What is the function of the AV node?
Coordinate the heart's contractions
Regulate blood pressure
Generate impulses
Pump blood
What is the primary function of the heart valves?
Decrease blood pressure
Allow blood to flow in both directions
Prevent backflow of blood
Increase heart rate
What is the term for the relaxation phase of the heart?
Systole
Diastole
Tachycardia
Fibrillation
What is the role of intercalated discs in cardiac muscle?
Generate electrical impulses
Provide structural support
Store calcium
Connect muscle fibers
What is the effect of epinephrine on heart rate?
No effect
Increases heart rate
Decreases heart rate
Irregular heart rate
What is the primary cause of heart failure?
Low blood pressure
Increased exercise
Narrowed arteries
High cholesterol
What does the T wave in an ECG represent?
Ventricular repolarization
Ventricular depolarization
Atrial repolarization
Atrial depolarization
What is the term for the ability of the heart to beat independently?
Diastole
Systole
Autorhythm
Arrhythmia
What is the primary role of the sinoatrial (SA) node?
Pump blood
Control blood pressure
Generate electrical impulses
Regulate body temperature
What is the function of the Purkinje fibers?
Conduct impulses to the atria
Store blood
Conduct impulses to the ventricles
Generate heartbeats
What is the term for the speed of the heartbeat?
Heart rate
Blood pressure
Cardiac output
Stroke volume
What is the primary function of the systemic circuit?
Transport oxygenated blood to the body
Transport deoxygenated blood to the heart
Transport blood to the kidneys
Transport oxygenated blood to the lungs
What is the effect of the parasympathetic nervous system on heart rate?
Irregular heart rate
No effect
Decreases heart rate
Increases heart rate
What is the primary cause of arrhythmias?
High blood pressure
Heart valve disease
Electrical disturbances
Narrowed arteries
What is the role of the autonomic nervous system in heart function?
Store energy
Generate electrical impulses
Pump blood
Regulate heart rate
What is the term for the heart's ability to generate its own electrical impulses?
Autorhythm
Arrhythmia
Systole
Diastole
What is the primary purpose of an electrocardiogram (ECG)?
Assess heart muscle strength
Monitor oxygen levels
Record electrical activity of the heart
Measure blood pressure
What is the term for the narrowing of blood vessels?
Arrhythmia
Atherosclerosis
Hypertension
Ischemia
What is the primary function of the heart's valves?
Decrease blood pressure
Allow blood to flow in both directions
Increase heart rate
Prevent backflow of blood
What is the term for the heart's contraction phase?
Diastole
Systole
Fibrillation
Tachycardia
What is the primary cause of myocardial infarction?
Increased exercise
High cholesterol
Blockage of coronary arteries
Low blood pressure
What is the purpose of the semilunar valves?
Prevent backflow of blood into the heart
Supply nutrients to the surrounding cells
Eject blood from the ventricles
Carry oxygenated blood to the left atrium
T/F: Blood Pressure is measured in BPM (beats per minute).
True
False
Through which structure does all of the deoxygenated blood from the body come back to the heart?
15
2
9
8
The heartbeat arises in which structure in the heart ?
sino atrial node
atro ventricular node
left ventricle
In the lungs , oxygen passes from ...
the blood to the alveoli
the alveoli to the blood
Blood that is coming towards the heart travels in ...
Trains
Arteries
Veins
Buses
The top 2 chambers of the heart are called
atria
ventricles
arteries
aorta
How many chambers does the heart have ?
1
2
3
4
It receives blood from the veins and pumps it to the right ventricle.
RIGHT VENTRICLE
RIGHT ATRIUM
LEFT VENTRICLE
LEFT ATRIUM
These are veins that transfer oxygenated blood from the lungs to the heart.
SUPERFICIAL VEIN
VENTRICLE
CARDIAC VEINS
PULMONARY VEINS
__________ occurs when the heart muscle relaxes.
DIASTOLE
FLATLINE
INDUCED
SYSTOLE
After blood comes back from the lungs it comes back to the heart through these blood vessels called
the aorta
the vena cava
the pulmonary vein
the pulmonary artery
Which chamber of the heart generates the highest pressure during systole?
Left ventricle
Right atrium
Left atrium
Right ventricle
This would be an example of
Sinus Rhythm
Junctional Rhythm
Heart Block
Arrhythmia
A patient HR reads 80 bpm and their cardiac output (CO) was determined to be 8000. What is the stroke volume?
(a)
An increase in afterload would cause SV to
Increase
Decrease
Remain the same
