2. When the left ventricle relaxes, the aortic valve closes and the mitral valve opens. This lets blood flow from the left atrium into the left ventricle.
4. Quickly shocking the heart with an automated external defibrillator (AED) can save a person's life after cardiac arrest. An AED is a portable, battery-operated device that a bystander can use. It checks the heart rhythm and can send an electric shock to the heart to try to restore a normal rhythm.
5. High blood pressure can damage your arteries by making them less elastic, which decreases the flow of blood and oxygen to your heart and leads to heart disease. In addition, decreased blood flow to the heart can cause: Chest pain, also called angina.
hope this helps :)
Question: The health care provider is teaching a client about the ability of the body to function and maintain homeostasis under conditions of change in the internal and external environment. The most important regulation is controlled by which system?
a) psychological
b) pharmacologic
c) parasympathetic
d) physiologic
Answer:
The most important system is controlled by the "physiologic system."
Explanation:
The physiologic system itself is combination of ten other system. It has organ system, the cardiovascular system, the digestive system, the endocrine system, immune system, muscular system, nervous system, renal system, reproductive system and skeletal system in it. The physiological changes leads to the maintaining the body temperature or may say inner state which is called as the homeostasis. In it has respiratory, circulation, rhythm, biochemicals like pH, pO2,pCO2 etc.
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