science exhibition

how to make chandrayaan 3 working model
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how to make a rubber band gun
how to make gun with cardboard and paper
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rocket making with paper for school project
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paper craft with rubber band
cardboard crafts with rubber bands
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origami rubber band gun
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paper craft with rubber bands
origami rubber band gun
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how to make a paper gun that shoots rubber bands
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how to make gun with cardboard and rubber band
how to make mini paper gun without rubber band
How To make an elastic aun
The heart is a muscular organ that pumps blood continuously throughout the body. It is comprised of four chambers the right and left atrium and the right and left ventricle.
The four chambers of the heart work together by alternately contracting and relaxing to pump blood throughout the heart. To accomplish this, the heart uses an electrical system to trigger a heartbeat.
Essentially, the electrical system is the power source that makes all the heart's functions possible.
Blood vessels lead in and out of the chambers, which receive and distribute blood throughout the body.
The four chambers of the heart are connected by four valves the tricuspid, pulmonic, mitral and aortic valves. These valves work like one-way doors, allowing blood to flow in only one direction.