1How does medicine taken orally reach the knees?
2Which body system is involved in this process?
3What is the main organ of this system?
4An elderly man suddenly grips his chest and cries out in pain. What may have happened to him?
5How can such a patient be helped in this situation?
6After observing a blood smear under a microscope, what can you say about the structure of blood?
7Write any four functions of plasma.
8Why does blood look red? What does haemoglobin do?
9Give three differences between red blood cells and white blood cells.
10Why are white blood cells called the soldiers of the body?
11What are granular and non-granular leucocytes? Give examples.
12What happens when the platelet count falls and when it rises?
13Explain the three main functions of blood.
14Where are red blood cells formed and destroyed? What happens to the iron from old cells?