Question

Ueny proportional to the ability of its haemoglobin to release
oxygen
32. The statements list some of the events in the cardiac cycle. They are not in the correct order
1
2
The impulse travels through Purkyne tissue
The ventricles contract.
3
4
The atrioventricular node delays the impulse for a fraction of a second.
The muscle tissue of the sinoatrial node contracts.
5
The wave of excitation sweeps upwards from the base of the ventricles.
6
A wave of excitation sweeps across the atria,
7
The atria contract.
Which statement describes the second of these events to occur in the cardiac cycle?
A 1
B 4
C 6
D 79
33. Which statement about typical bronchioles is correct?
Ans only 32?

Answer 1

Answer: ignoble

Explanation:

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