What you’ll learn6 learning objectivesChoose one objective for a focused lesson, or study the complete topic.9.3.1Structure of arteries, veins• Describe the structure of arteries, veins and capillaries, limited to: relative thickness of wall, diameter of the lumen and the presence of valves in veinsSyllabus objective9.3.2Functions of capillaries• State the functions of capillariesSyllabus objective9.3.3Main blood vessels• Identify in diagrams and images the main blood vessels to and from the: (a) heart, limited to: vena cava, aorta, pulmonary artery and pulmonary vein (b) lungs, limited to: pulmonary artery and pulmonary vein (c) kidney, limited to: renal artery and renal veinSyllabus objective9.3.4Structure of arteries and veins is• Explain how the structure of arteries and veins is related to the pressure of the blood that they transportSyllabus objective9.3.5Structure of capillaries is related• Explain how the structure of capillaries is related to their functionsSyllabus objective9.3.6Main blood vessels• Identify, in diagrams and images, the main blood vessels to and from the liver as: hepatic artery, hepatic veins and hepatic portal veinSyllabus objective