Topic: Body Transport System Subtopic: The Pulse
What is happening to heart?
Answer: If we put our hand over the chest, we can feel the beats produced by the heart. This is not due to the blood pressure passing through the vessels, but it is due to the contraction and relaxation, or pumping action of the heart.
Learn also:
- What makes heart sound like dub?
- What is bronchitis?
- Why do not plants require huge amount of raw materials?
- What is alveolus?
- What happens to food in stomach?
- How is pulse detected?