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CAIE IGCSE Biology 9.2.1 Structures of the Mammalian Heart Questions

Practise identifying chambers, muscular walls, septum, one-way valves and coronary arteries in heart diagrams.

Syllabus
2026–2028
Course
Biology 0610

Exam points

  • orient a diagram before distinguishing the right and left atria and ventricles
  • identify atrioventricular and semilunar valves and state that they prevent backflow
  • identify the septum as the divider between sides and coronary arteries as the heart muscle's blood supply

CAIE IGCSE Biology 9.2.1 Structures of the Mammalian Heart Questions question 1

[Maximum number: 3]

Question (a)

(a)

Fig. 6.1 shows diagrams of the circulatory systems of a fish and a mammal.
The arrows show the direction of blood flow through the circulatory systems.

Fig. 6.1

Fig. 6.1

[ 2 ]

Question (i)

(i)

State the name of structure V on Fig. 6.1 and describe its function.

[ 2 ]

Question (b)

(b)

The blood vessels that supply the heart muscle can become blocked.

[ 1 ]

Question (i)

(i)

State the name of the blood vessels that supply the heart muscle.

[ 1 ]
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