Which is the cause of coronary heart disease?
Fatty material and other substances form a plaque build-up on the walls of the coronary arteries
Fatty material and other substances form a plaque build-up on the walls of the capillary artery
Fatty material and other substances form a plaque build-up on the walls of the capillary veins
Fatty material and other substances form a plaque build-up on the walls of the venules
What is the circulatory system?
The body's breathing system
The body's system of nerves
The body's food-processing system
The body's blood-transporting system
Define blood pressure.
Pressure which drives blood round the digestive system
Pressure which drives blood round the respiratory system
Pressure which drives blood round the nervous system
Pressure which drives blood round the circulatory system
What part of the blood carries minerals, vitamins, sugar, and other foods to the body's cells?
Plasma
Platelets
Red corpuscles
White corpuscles
What is the function of the blood vessels and capillaries?
They pump blood to the heart.
They filter impurities from the blood.
They carry blood to all parts of the body.
They carry messages from the brain to the muscles.
Which part of the human heart carries oxygenated blood?
Pulmonary artery
Hepatic portal vein
Pulmonary vein
Capillary artery
Which element in the blood is round and colorless?
Red blood cells
White blood cells
What is the lymphatic system?
Circulatory system
Immune system
Digestive system
Respiratory system
Why does blood turn dark red as it circulates through the body?
It starts to clot.
It gets old and dirty flowing through the body.
The oxygen in it is replaced with carbon dioxide.
The farther blood is from the heart, the more dark red it is.
Human blood is composed of how many components?
1
2
3
4
