WorksheetsCardiovascular System Quiz
Total questions: 80
Worksheet time: 40mins
Which of the following is NOT a function of the Cardiovascular (CV) System?
Distributing blood to all areas of the body.
Delivering needed substances to cells.
Removing wastes from cells.
Producing blood cells.
What is the primary function of the heart in the cardiovascular system?
To filter blood
To produce red blood cells
To pump blood throughout the body
To absorb nutrients
What is the function of the heart in the cardiovascular system?
Carries blood away from the heart
Carries blood toward the heart
Exchange site between blood and tissues
Pumps blood through blood vessels
What is the primary function of arteries?
Pumps blood through blood vessels
Carries blood toward the heart
Exchange site between blood and tissues
Carries blood away from the heart
What is the main role of veins in the cardiovascular system?
Pumps blood through blood vessels
Carries blood away from the heart
Exchange site between blood and tissues
Carries blood toward the heart
What is the function of capillaries?
Pumps blood through blood vessels
Carries blood away from the heart
Carries blood toward the heart
Exchange site between blood and tissues
What is one of the main functions of the cardiovascular system?
It regulates body temperature.
It maintains the distribution of blood throughout the body.
It controls muscle contractions.
It synthesizes hormones.
What does the blood deliver to the cells?
Carbon dioxide and waste products.
Oxygen and nutrients.
Hormones and enzymes.
Heat and energy.
Where does the blood remove waste products from?
From the lungs, liver, and kidneys for elimination.
From the heart and spleen for recycling.
From the muscles and joints for repair.
From the brain and spinal cord for processing.
What does the systemic circulation do?
Carries blood from the heart to the lungs and from the lungs to the heart.
Supplies oxygenated and nutrient-rich blood for the heart muscle.
Carries blood from the heart to the body and from the body to the heart.
Adjusts systemic and pulmonary circulation during fetal development.
What is the role of pulmonary circulation?
Supplies oxygenated and nutrient-rich blood for the heart muscle.
Carries blood from the heart to the body and from the body to the heart.
Adjusts systemic and pulmonary circulation during fetal development.
Carries blood from the heart to the lungs and from the lungs to the heart.
What is the function of the coronary circulation?
Carries blood from the heart to the lungs and from the lungs to the heart.
Carries blood from the heart to the body and from the body to the heart.
Supplies oxygenated and nutrient-rich blood for the heart muscle.
Adjusts systemic and pulmonary circulation during fetal development.
What happens to the foramen ovale after birth?
It becomes the ductus arteriosus.
It becomes the ligamentum arteriosum.
It becomes the fossa ovalis.
It remains unchanged.
What does the ductus arteriosus become after birth?
The foramen ovale.
The fossa ovalis.
The ligamentum arteriosum.
It remains unchanged.
What does the pulmonary circuit in the circulatory system do?
Delivers oxygen to the body tissues
Picks up oxygen from the digestive system
Picks up oxygen from the lungs
Delivers carbon dioxide to the lungs
Which type of blood is carried by the systemic veins?
Oxygen-rich, CO2-poor blood
Oxygen-poor, CO2-rich blood
Oxygen-rich, CO2-rich blood
Oxygen-poor, CO2-poor blood
Where does the gas exchange occur in the capillary bed of the lungs?
In the pulmonary arteries
In the systemic arteries
In the pulmonary veins
In the capillary bed of all body tissues
What is the function of the systemic circuit in the circulatory system?
It delivers oxygen to the lungs.
It delivers oxygen to the body tissues.
It picks up oxygen from the lungs.
It picks up carbon dioxide from the body tissues.
How many chambers does the heart have?
Two
Four
Six
Eight
What is the average range of heartbeats per minute (bpm)?
30–60 bpm
60–100 bpm
100–140 bpm
140–180 bpm
Approximately how many beats does the heart make per day?
10,000 beats
50,000 beats
100,000 beats
200,000 beats
Where is the heart located?
In the abdomen
In the mediastinum
In the cranial cavity
In the pelvic cavity
What is the size of the heart compared to?
A walnut
A fist
A grapefruit
A football
Where is the heart located within the thoracic cavity?
Within the pleural cavity
Within the mediastinum
Above the diaphragm
Outside the thoracic cavity
What structure is indicated by the label "Apex of heart" in the diagram?
The lower pointed end of the heart
The upper right chamber of the heart
The blood vessel leaving the heart to the lungs
The muscle separating the chest from the abdominal cavity
Which of the following structures is not part of the heart as shown in the diagram?
Aorta
Pulmonary trunk
Left lung
Superior vena cava
What is the function of the endocardium layer of the heart?
It pumps blood through blood vessels.
It forms the visceral layer of the pericardial sac.
It reduces friction as the blood passes through heart chambers.
It develops the pressure required to pump blood.
Which layer of the heart is described as the middle layer and contains thick muscle?
Endocardium
Myocardium
Epicardium
Pericardium
What is the primary role of the myocardium?
It lines the heart chambers.
It reduces friction between the layers of the pericardial sac.
It develops the pressure required to pump blood.
It forms the visceral layer of the pericardial sac.
Which layer of the heart is the outer layer and helps in reducing friction as the heart beats?
Endocardium
Myocardium
Epicardium
Pericardium
Which chamber of the heart receives deoxygenated blood from the body?
Left atrium
Left ventricle
Right atrium
Right ventricle
Through which valve does blood flow from the right atrium to the right ventricle?
Aortic valve
Mitral valve
Pulmonary valve
Tricuspid valve
What is the name of the layer that forms the innermost lining of the heart?
Endocardium
Myocardium
Pericardium
Epicardium
Which blood vessel carries oxygenated blood from the lungs to the heart?
Superior vena cava
Inferior vena cava
Pulmonary trunk
Pulmonary vein
What is the function of the aortic valve?
It regulates blood flow from the right ventricle to the pulmonary artery.
It regulates blood flow from the left atrium to the left ventricle.
It regulates blood flow from the left ventricle into the aorta.
It regulates blood flow from the right atrium to the right ventricle.
How many chambers does the heart have?
2
4
6
8
What are the upper chambers of the heart called?
Ventricles
Atria
Valves
Arteries
What is the function of the atria?
They pump blood to the body
They receive blood from the body
They oxygenate the blood
They filter the blood
Through which veins does deoxygenated blood enter the right atria?
Pulmonary veins
Aorta
Vena cavae
Pulmonary artery
What is the role of the ventricles in the heart?
They receive blood from the body
They filter the blood
They pump blood out of the heart
They store blood
Where does the oxygenated blood exit the left ventricle?
Into the pulmonary artery
Into the vena cavae
Into the aorta
Into the pulmonary veins
What structure divides the heart into right and left sides?
Atria
Ventricles
Septum
Valves
What is the function of heart valves?
To pump blood to the lungs
To force blood to flow forward and prevent regurgitation
To produce blood cells
To absorb nutrients from digested food
How many valves are there in the heart?
Two
Three
Four
Five
Where is the tricuspid valve located?
Between left atrium and left ventricle
Between right atrium and right ventricle
Between right atrium and pulmonary trunk
Between left atrium and ascending aorta
Which valve is situated between the right atrium and the pulmonary trunk?
Tricuspid
Pulmonary
Mitral or bicuspid
Aortic
What is the mitral valve also known as?
Tricuspid
Pulmonary
Bicuspid
Aortic
Where is the aortic valve located?
Between right atrium and right ventricle
Between right atrium and pulmonary trunk
Between left atrium and left ventricle
Between left atrium and ascending aorta
What is the alternative name for the mitral valve as shown in the diagram?
Left semilunar valve
Right semilunar valve
Left atrioventricular valve
Right atrioventricular valve
Which valve is also known as the right semilunar valve according to the diagram?
Aortic valve
Pulmonary valve
Mitral valve
Tricuspid valve
Identify the valve labeled as the left semilunar valve in the diagram.
Aortic valve
Pulmonary valve
Mitral valve
Tricuspid valve
What is the alternative name for the tricuspid valve as indicated in the diagram?
Left semilunar valve
Right semilunar valve
Left atrioventricular valve
Right atrioventricular valve
What happens to the heart chambers during diastole?
The chambers contract and push blood forward.
The chambers relax and fill with blood.
The chambers remain quiescent.
The chambers do not change.
Which of the following is NOT a phase of the cardiac cycle?
Atrial systole
Ventricular diastole
Quiescent period
Pulmonary phase
Cardiac Output is the amount of blood ejected by the ventricles per minute. How is it calculated?
CO = HR + SV
CO = HR / SV
CO = HR x SV
CO = HR - SV
What is the Stroke Volume (SV) if the End Diastolic Volume (EDV) is 130 ml and the End Systolic Volume (ESV) is 60 ml?
70 ml
60 ml
190 ml
130 ml
What is the function of the right atrium in the heart?
To pump blood to the lungs
To receive blood from the body
To pump blood to the body
To receive blood from the lungs
Which valve prevents backflow of blood from the right ventricle to the right atrium?
Aortic valve
Mitral (bicuspid) valve
Pulmonary valve
Tricuspid valve
Where does the blood go after it leaves the left ventricle?
To the lungs via the pulmonary artery
To the body via the aorta
To the right atrium
Back into the left atrium
What is the role of the pulmonary veins in the circulatory system?
They carry oxygenated blood from the lungs to the left atrium
They carry deoxygenated blood from the body to the right atrium
They carry deoxygenated blood from the right ventricle to the lungs
They carry oxygenated blood from the left ventricle to the body
Which structure separates the left and right ventricles?
Aortic valve
Mitral valve
Interventricular septum
Myocardium
What regulates the contraction and relaxation of the heart?
The respiratory system
The conduction system
The digestive system
The circulatory system
Which system controls the conduction system of the heart?
The endocrine system
The skeletal system
The autonomic nervous system
The muscular system
What is the function of the special tissue within the heart?
It pumps blood throughout the body.
It protects the heart from diseases.
It conducts electrical impulses.
It stores oxygen for the heart cells.
What is the role of the tissue that conducts electrical impulses in the heart?
It ensures the heart chambers relax in the correct order.
It prevents the heart from contracting.
It stimulates the heart chambers to contract in the correct order.
It seals the heart chambers to prevent blood leakage.
What is the term used to describe heart tissue that can initiate its own contraction without external stimuli?
Ischemic
Autorythmic
Hypertrophic
Myogenic
What is the specialized area that begins the conduction in the heart known as?
The ventricle
The atrium
The valve
The pacemaker
What is the correct sequence of structures that an electrical impulse travels through in the conduction system of the heart?
Atrioventricular node, sinoatrial node, atrioventricular bundle, bundle branches, Purkinje fibers
Sinoatrial node, atrioventricular node, atrioventricular bundle, bundle branches, Purkinje fibers
Atrioventricular bundle, sinoatrial node, atrioventricular node, Purkinje fibers, bundle branches
Purkinje fibers, bundle branches, atrioventricular bundle, atrioventricular node, sinoatrial node
What does the P wave in an electrocardiogram (EKG) represent?
Preparation for the next series of complexes
Contraction of the ventricles
Contraction of the atria
The electrical signal as it moves through the conduction system of the heart
What does the QRS complex in an electrocardiogram (EKG) correlate with?
Contraction of the atria
Preparation for the next series of complexes
Contraction of the ventricles
The electrical signal as it moves through the conduction system of the heart
What does the T wave in an electrocardiogram (EKG) indicate?
Contraction of the atria
Contraction of the ventricles
Preparation for the next series of complexes
The electrical signal as it moves through the conduction system of the heart
What is the function of the heart in relation to the blood vessels?
The heart filters the blood.
The heart is the pump that moves blood through the blood vessels.
The heart stores the blood.
The heart cools the blood down.
Which of the following are types of blood vessels?
Bronchi and bronchioles
Arteries and arterioles
Alveoli and ducts
Lymph nodes and vessels
What are the layers of both arteries and veins?
Tunica interna, tunica media, and tunica externa
Epidermis, dermis, and hypodermis
Mucosa, submucosa, and muscularis
Cortex, medulla, and pelvis
What is the lumen in the context of blood vessels?
A type of white blood cell
The outer layer of the blood vessel
The channel within the blood vessels
A valve that prevents backflow of blood
Which type of blood vessel contains valves to prevent backflow of blood?
Artery
Capillary
Vein
All of the above
What is the innermost layer of a blood vessel called?
External elastic membrane
Smooth muscle
Endothelium
Lumen
Which blood vessel has the thinnest walls, allowing for exchange of gases and nutrients?
Artery
Capillary
Vein
Valve
What is the function of the smooth muscle layer in blood vessels?
To prevent backflow of blood
To allow for exchange of gases and nutrients
To regulate blood vessel diameter
To provide a smooth surface for blood flow
Which blood vessel is primarily responsible for carrying oxygenated blood away from the heart?
Artery
Capillary
Vein
Valve
