21 Questions
What is the main function of the cardiovascular system?
To transport oxygen to tissues throughout the body
What is the term for the relaxation phase of the heartbeat?
Diastole
What is the name of the layer of tissue that enables exchange of oxygen and nutrients between the blood and tissues?
Endothelial tissue
What type of blood vessels have valves to prevent backflow?
Veins
What is the purpose of the Rh factor in blood?
To identify blood compatibility
What is the name of the diagnostic procedure that uses sound waves to measure blood flow?
Doppler ultrasound
What is the name of the major blood vessel that carries oxygenated blood from the heart to the rest of the body?
Aorta
What is the term for the contraction phase of the heartbeat?
Systole
What is the name of the layer of tissue that surrounds the heart?
Pericardium
What type of blood vessels are strong and elastic, and carry blood away from the heart?
Arteries
What is the primary function of erythrocytes?
To transport oxygen
What is the process called when old red blood cells are destroyed?
Haemolysis
What percentage of blood is composed of cells?
Two thirds
What is the main function of basophil white blood cells?
To aid in allergic responses
What is the purpose of the clotting process?
To conserve the body's supply of blood
Which type of white blood cell is most common?
Neutrophil
What is the function of platelets in blood?
To initiate clotting
What is the name of the protein found in red blood cells that carries oxygen?
Haemoglobin
Where do erythrocytes originate?
Bone marrow
What is the term for the fluid part of blood?
Plasma
What is the main function of neutrophil white blood cells?
To destroy microorganisms
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