NEW
Font size
WorksheetsA.1.3.1 Cardiovascular system
Total questions: 14
Worksheet time: 7mins
What is the primary function of blood?
To transport oxygen only
To produce hormones
To regulate body temperature
To transport gases, nutrients, and waste products
What percentage of blood is made up of plasma?
55%
30%
40%
70%
What is the role of platelets in the blood?
Transport oxygen
Assist in clotting and repair
Fight infections
Carry nutrients
What is the term for the percentage of red blood cells in the blood?
Hemoglobin
Haematocrit
Erythropoietin
Cardiac output
What is the function of arteries?
To facilitate gaseous exchange
To store blood
To carry oxygenated blood away from the heart
To carry deoxygenated blood to the heart
What is the structure of capillaries?
Elastic walls
Wide lumen
Thick muscular walls
One cell thick
What does high blood pressure (hypertension) refer to?
Below 90/60 mmHg
Consistently 130/80 mmHg or higher
Above 120/80 mmHg
Normal blood pressure
What is the primary role of the pulmonary circulation?
Deliver oxygenated blood to the body
Return blood to the heart
Deliver deoxygenated blood to the lungs
Transport nutrients from the intestines
What is cardiac output?
The volume of blood pumped by each ventricle
The pressure of blood in the arteries
The number of heartbeats per minute
The amount of blood pumped out by the heart in one minute
What happens to blood pressure during dynamic exercise?
It decreases
It fluctuates randomly
It remains the same
It increases
What is the function of valves in veins?
To assist in oxygen transport
To increase blood pressure
To prevent backflow of blood
To regulate blood volume
What is the role of erythropoietin (EPO)?
Stimulate red blood cell production
Stimulate white blood cell production
Regulate blood pressure
Control heart rate
What is the primary effect of cardiovascular drift during prolonged exercise?
Increase in stroke volume
Decrease in heart rate
Decrease in blood viscosity
Increase in core temperature
What is the largest vein in the body?
Hepatic vein
Vena cava
Pulmonary vein
Jugular vein
