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Health and medicine

Course: Health and medicine > Unit 2

Lesson 1: Circulatory anatomy and blood flow
Science
Health and medicine
Circulatory system anatomy and physiology
Circulatory anatomy and blood flow
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Intermediate Circulatory System Quiz

Google Classroom

Problem

The heart contracts twice for every heartbeat. One contraction is the atrial contraction while the other is the ventricular contraction. During ventricular contraction, which two valves of the heart open?
Choose 1 answer:
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