Circulatory System Lecture 6

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Which circuit carries deoxygenated blood from the heart to the lungs?

Systemic circuit (correct)

Cardiac circuit

Pulmonary circuit

Coronary circuit

Which blood vessel carries oxygenated blood from the lungs to the heart?

Pulmonary artery

Aorta

Vena cava

Pulmonary vein (correct)

Which component of the heart induces both atria to contract?

SA node (correct)

Ventricles

Pacemaker

AV node

What is the function of valves in veins?

Prevent backflow Signup and view all the answers

During which phase of the cardiac cycle do the ventricles contract?

Systole Signup and view all the answers

What is the primary function of the pulmonary circuit?

Oxygenate blood Signup and view all the answers

Which blood vessel carries deoxygenated blood from the heart to the lungs?

Pulmonary artery Signup and view all the answers

What is the role of the AV node in the heart?

Induces both ventricles to contract Signup and view all the answers

What is the function of the systemic circuit?

Supply oxygenated blood to the body tissues Signup and view all the answers

What is the main function of the circulatory system?

To distribute materials throughout the body Signup and view all the answers

Which component is part of the cardiovascular system?

Blood vessels Signup and view all the answers

What is the function of red blood cells (RBC) in the blood?

Bind and transport oxygen molecules Signup and view all the answers

Where do capillaries function as sites of chemical exchange?

With the blood to form capillary beds Signup and view all the answers

Which blood vessels carry blood away from the heart to capillaries?

Arteries Signup and view all the answers

What is the function of the ventricles in the heart?

Where blood exits the heart Signup and view all the answers

What type of muscle is the human heart mainly composed of?

Cardiac muscle Signup and view all the answers

How many times does blood pass through the heart in double circulation?

Twice Signup and view all the answers

What is the main function of platelets in the blood?

Cell fragments involved in blood clotting Signup and view all the answers

What are the three major components of the cardiovascular system?

Blood, blood vessels, heart Signup and view all the answers

Which blood vessel carries blood away from the heart to capillaries?

Arteries Signup and view all the answers

What is the main function of red blood cells (RBC) in the blood?

Bind and transport oxygen molecules Signup and view all the answers

What is the function of the ventricles in the heart?

Pump blood through the blood vessels by muscular action Signup and view all the answers

What is the role of the AV node in the heart?

To relay electrical impulses to the ventricles Signup and view all the answers

What is the function of valves in veins?

Prevent backflow of blood Signup and view all the answers

What type of muscle is the human heart mainly composed of?

Cardiac muscle Signup and view all the answers

What is the primary function of the pulmonary circuit?

Carries deoxygenated blood from the heart to the lungs Signup and view all the answers

Where do capillaries function as sites of chemical exchange?

Capillary beds Signup and view all the answers

What is the function of the SA node in the heart?

Regulates the timing of muscular contractions Signup and view all the answers

What is the primary function of the pulmonary circuit?

To oxygenate blood Signup and view all the answers

What is the role of the AV node in the heart?

Induces both ventricles to contract Signup and view all the answers

Where does gas exchange primarily occur in the respiratory system?

Between the blood and the environment or body Signup and view all the answers

What is the main function of the systemic circuit?

To carry blood to the body tissues Signup and view all the answers

What is the function of valves in veins?

To prevent backflow of blood Signup and view all the answers

What is the function of the ventricles in the heart?

To pump blood into the aorta Signup and view all the answers

What is the function of the capillaries in the respiratory system?

To facilitate gas exchange Signup and view all the answers

What is the main function of the circulatory system?

To transport oxygen and nutrients to cells Signup and view all the answers

What is the function of the SA node in the heart?

Regulates the timing of muscular contractions Signup and view all the answers

What is the primary function of the pulmonary circuit?

To oxygenate blood and remove CO2 Signup and view all the answers

What is the role of the AV node in the heart?

Induces both ventricles to contract Signup and view all the answers

Where do capillaries function as sites of chemical exchange?

Between the blood and the body tissues Signup and view all the answers

What is the function of the systemic circuit?

To carry blood to the body tissues and pick up CO2 Signup and view all the answers

Which blood vessel carries deoxygenated blood from the heart to the lungs?

Pulmonary artery Signup and view all the answers

What is the function of the ventricles in the heart?

To pump blood into the aorta and pulmonary arteries Signup and view all the answers

What is the main function of the capillaries of the lungs?

To facilitate gas exchange Signup and view all the answers

What is the main function of the AV node in the heart?

Induces both ventricles to contract Signup and view all the answers

Circulatory System Lecture 6

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Questions and Answers

Which circuit carries deoxygenated blood from the heart to the lungs?

Which blood vessel carries oxygenated blood from the lungs to the heart?

Which component of the heart induces both atria to contract?

What is the function of valves in veins?

During which phase of the cardiac cycle do the ventricles contract?

What is the primary function of the pulmonary circuit?

Which blood vessel carries deoxygenated blood from the heart to the lungs?

What is the role of the AV node in the heart?

What is the function of the systemic circuit?

What is the main function of the circulatory system?

Which component is part of the cardiovascular system?

What is the function of red blood cells (RBC) in the blood?

Where do capillaries function as sites of chemical exchange?

Which blood vessels carry blood away from the heart to capillaries?

What is the function of the ventricles in the heart?

What type of muscle is the human heart mainly composed of?

How many times does blood pass through the heart in double circulation?

What is the main function of platelets in the blood?

What are the three major components of the cardiovascular system?

Which blood vessel carries blood away from the heart to capillaries?

What is the main function of red blood cells (RBC) in the blood?

What is the function of the ventricles in the heart?

What is the role of the AV node in the heart?

What is the function of valves in veins?

What type of muscle is the human heart mainly composed of?

What is the primary function of the pulmonary circuit?

Where do capillaries function as sites of chemical exchange?

What is the function of the SA node in the heart?

What is the primary function of the pulmonary circuit?

What is the role of the AV node in the heart?

Where does gas exchange primarily occur in the respiratory system?

What is the main function of the systemic circuit?

What is the function of valves in veins?

What is the function of the ventricles in the heart?

What is the function of the capillaries in the respiratory system?

What is the main function of the circulatory system?

What is the function of the SA node in the heart?

What is the primary function of the pulmonary circuit?

What is the role of the AV node in the heart?

Where do capillaries function as sites of chemical exchange?

What is the function of the systemic circuit?

Which blood vessel carries deoxygenated blood from the heart to the lungs?

What is the function of the ventricles in the heart?

What is the main function of the capillaries of the lungs?

What is the main function of the AV node in the heart?

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