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What is the organ that relaxes and contracts?
heart
What muscle contracts and relaxes to pump blood?
The heart
How does the heart contract or relax?
The heart contracts and relaxes during a cardiac cycle.
What is he organ that relaxes and contracts?
Typically that organ is your heart. It contracts and relaxes 72 times per minute, day and night, till your death. That means for hundred years.
What is the first part of the cardiac cycle called?
The first part of the cardiac cycle is called diastole, which is when the heart relaxes and fills with blood. This is followed by systole, when the heart contracts to pump blood out to the body.
What is the muscle that contracts and relaxes so that you can breath is the?
It is called your diaphragm.
What are the spaces between pulsations called?
The spaces between pulsations are called diastole. This is the phase of the cardiac cycle when the heart muscle relaxes and fills with blood before it contracts again during systole.
When the bicep contacts what muscle relaxes?
When the bicep contracts, the tricep relaxes. These pair of muscles are known as antagonists which means as one contracts, the other relaxes and vice versa.
What is organ that relaxes and contracts?
muscles
How does the triceps and biceps work together to straighten your arm?
When lowering arm biceps relax and triceps contracts. When one contracts the other relaxes when you move it forward and downward.
What does the other muscle do when one relaxes?
It Contracts
When one muscle contracts what do the opposite do?
It relaxes
