Chapter 5 / 7 short lessons
Transport in humans
Trace circulation, match blood components to their jobs and explain how the heart pumps in one direction.
G3 Combined Biology / K327 / K328 / 2027 syllabus
What do you think?
The pulmonary artery carries blood with relatively little oxygen. Why is it still an artery?
Lessons
0 of 7 marked as readBlood vessels and circulation routes
Trace the main vessels linking the heart, lungs, liver and kidneys.
About 5 minArteries, veins and capillaries
Explain vessel structures using pressure, return flow and exchange distance.
About 4 minWhat blood carries
Match oxygen and other transported materials to the relevant blood component.
About 4 minImmune defence and blood clotting
Explain phagocytosis, antibodies, tissue rejection and blood clotting.
About 5 minThe four-chambered heart
Relate chambers, septum, muscular walls and valves to one-way pumping.
About 5 minHow heart contraction and valves move blood
Explain how contraction, relaxation and valve action produce one-way flow through the heart.
About 5 minCoronary arteries and heart disease
Connect coronary narrowing, reduced oxygen supply and risk factors.
About 4 minWhat you will be able to do
- Trace named vessels between organs.
- Explain blood and vessel structure-function relationships.
- Connect heart contraction and valves to blood flow and coronary supply.
Spaced review
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