Voltage gated sodium Channels
Answer:
what to answer I don't know sorry
Explanation:
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Answer: Ventricle I have also given the explaination.
Explanation: The right ventricle pumps the oxygen-poor blood to the lungs through the pulmonary valve. The left atrium receives oxygen-rich blood from the lungs and pumps it to the left ventricle through the mitral valve. The left ventricle pumps the oxygen-rich blood through the aortic valve out to the rest of the body.
Answer: He should immediately start chest compressions and call for help.
Explanation: This will ensure that the heartbeat of the man does not stop or he does not stop breathing. This ensures the safety of the man until help arrives. (I see that there is a Select all that apply at the bottom but i see no choices, so if there are choices, please share them)