Transport in Mammals (1) Biology AS Level
Cambridge
AS & A Level
Biology (9700)
فروردین
2010
شامل مباحث:
UNIT 8: Transport in mammals
تعداد سوالات: 20
سطح دشواری:
متوسط
شروع:
آزاد
پایان:
آزاد
مدت پاسخگویی:
25 دقیقه
پیش نمایش صفحه اول فایل
omer uner Some of the events during a cardiac cycle are listed.
1. Left and right atria contract.
2. Left and right ventricles contract.
3. A wave of electrical activity is conducted by the Purkyne tissue.
4. A wave of electrical activity passes through the atrioventricular node.
What is the correct sequence of events after the sinoatrial node sends out a wave of electrical activity?
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