The stage of the heart cycle in which the heart muscle is relaxed<span>, allowing the chambers to fill with blood. ... The </span>stage of the heart cycle in which the heart muscle<span> contracts and the chambers pump blood. Systolic Pressure. Blood pressure in the arteries during contraction of the ventricles</span>
Warm up exercises are important because they reduce the risk of injury.5 points that are important for warming up are :-
1) Warming up helps the body to deliver oxygen to the travail muscle groups.
2) Warming up will increase vital sign, that reduces the prospect for muscle and sinew injuries.
3) A five minute readying will increase blood flow to the travail muscles. A larger level of blood reaching the muscles concerned within the activity aids within the delivery of the vital fuels (e.g., glucose and free fatty acids) needed for energy production.
4) Warming up will increase the suppleness of the muscle, thereby enhancing the mechanical potency and power of the travail muscles.
5)An applicable readying prepares the vascular system for the approaching (more strenuous) physical activity. Warming up helps to confirm that the cardiovascular system (heart and blood vessels) is given time to regulate to the body’s enhanced demands for blood and oxygen.
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The human body is made of organ systems that work together to maintain (balance or homeostasis)
Answer:
I think it is A.
Explanation:
When the result of a game is a tie at the end of the regulation time. At this point, both teams will play on for two extra 15 minute periods.
