Topic 6.2: The Transport System

6.2 The transport system

6.2.1

Draw and label a diagram of the heart showing the four chambers, associated blood vessels, valves and the route of blood through the heart.

6.2.2

State that the coronary arteries supply heart muscle with oxygen and nutrients.

6.2.3

Explain the action of the heart in terms of collecting blood, pumping blood, and opening and closing of valves.

6.2.4

Outline the control of the heartbeat in terms of myogenic muscle contraction, the role of the pacemaker, nerves, the medulla of the brain and epinephrine (adrenaline).

6.2.5

Explain the relationship between the structure and function of arteries, capillaries and veins.

6.2.6

State that blood is composed of plasma, erythrocytes, leucocytes (phagocytes and lymphocytes) and platelets.

6.2.7

State that the following are transported by the blood: nutrients, oxygen, carbon dioxide, hormones, antibodies, urea and heat.


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