In systole, you should expect that your mitral valve and tricuspid valve to be closed (snap shut) and you should expect your pulmonary valve and aortic valve to open. Hope this helps
Answer:
biting you tongue hurts when it not on purpose because your body is ready to take the impact of you teeth and when its not on purpose, you tongue is soft and easy to cut through
Explanation:
Answer:
your spit is one of them too
Explanation:
they're not really but considering your fresh pee is 10x less dirty than a spit I'm considering.
The answer is Aerobic exercise (such as swimming, running, climbing)
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