Describe the relationship between vascular resistanceand the radius of a vessel. Explain how blood flow can be divertedfrom one organ to another.

Explain how stroke volume can increase during exerciseeven though filling times are
reduced at high cardiac rate

Describe how stroke volume is intrinsically regulated byend-diastolic volume. Why is this regulationsignificant?

Distinguish between different types of formed elementsof blood in terms of their origin,
appearance and function.

Describe the pressure changes that occur during cardiaccycle and relate these changes to the occurrenceof heart sounds.