Https://www.youtube.com/watch?v=7XaftdE_h60 This is a video about the function of heart and the flow of blood through it - take the quiz

What is the main function of the heart?
Pumping blood throughout the body
Digesting food
Producing hormones
Filtering waste
Which blood vessels carry oxygenated blood away from the heart?
Arteries
Veins
Capillaries
Lymphatic vessels
What is the largest artery in the human body?
How many chambers does the human heart have?
2
3
4
5
Which chamber of the heart receives oxygenated blood from the lungs?
Left atrium
Right atrium
Left ventricle
Right ventricle
What is the name of the valve that separates the left atrium from the left ventricle?
Mitral valve
Tricuspid valve
Aortic valve
Pulmonary valve
Which blood vessels carry deoxygenated blood towards the heart?
Veins
Arteries
Capillaries
Lymphatic vessels
What is the purpose of valves in the veins?
To prevent backflow of blood
To regulate blood pressure
To produce red blood cells
To filter waste products
Which blood vessel carries oxygenated blood from the lungs to the heart?
Pulmonary vein
Pulmonary artery
Aorta
Vena cava
What is the purpose of red blood cells?
Carrying oxygen to body tissues
Fighting infections
Producing hormones
Breaking down food particles
Which of the following is NOT a component of blood?
Plasma
Platelets
White blood cells
Red blood cells
What is the average adult heart rate at rest?
60-70 beats per minute
100-120 beats per minute
30-40 beats per minute
80-90 beats per minute
Which blood vessels have the thinnest walls?
Capillaries
Arteries
Veins
Lymphatic vessels
What is the purpose of the circulatory system?
To transport oxygen, nutrients, and hormones throughout the body
To regulate body temperature
To produce energy
To eliminate waste products
Which chamber of the heart pumps deoxygenated blood to the lungs?
Right ventricle
Left ventricle
Right atrium
Left atrium
What is the purpose of the heart valves?
To ensure one-way blood flow through the heart
To regulate heart rate
To produce white blood cells
To filter toxins
Which blood vessels have thick, elastic walls to withstand high pressure?
Arteries
Veins
Capillaries
Lymphatic vessels
What is the purpose of the sinoatrial (SA) node in the heart?
To initiate electrical impulses and regulate heart rhythm
To transport oxygenated blood
To filter waste products
To produce red blood cells
Which blood vessels carry deoxygenated blood from the heart to the lungs?
Pulmonary arteries
Pulmonary veins
Aorta
Vena cava
What is the purpose of the coronary arteries?
To supply oxygenated blood to the heart muscle
To remove waste products from the heart
To regulate blood pressure
To produce hormones
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