Answer:
The sympathetic nervous system originates in the spinal cord and its main function is to activate the physiological changes that occur during the fight-or-flight response. This component of the autonomic nervous system utilises and activates the release of norepinephrine in the reaction.
Healthcare associated or nosocomial pneumonia are
acquired by non-hospitalized patients in hospitals or other health care
facilities. Pneumonia are poly-microbial in origin and the causative agents are
viruses, bacteria and fungi. In nosocomial pneumonia, bacteria enter the lower
respiratory tract due to mechanical ventilation. Meanwhile, persons in general
population experience community-acquired pneumonia.
The blood cells and blood vessels belong to the cardiovascular system.
<h3>What is the Cardiovascular system?</h3>
The cardiovascular system, also known as your circulatory system, is made up of numerous blood veins throughout your body. Your heart uses the extensive, complex network of blood arteries to carry oxygen and other essentials to every part of your body. Additionally, this network takes away items that your body doesn't require and transports them to organs that can dispose of waste. Your entire body receives oxygen, nutrients, and waste through your blood.
The cardiovascular system's job is to make sure that your body gets the nutrition, oxygen, and other things it needs while eliminating the items it doesn't.
Even when you are asleep, your heart is still pumping blood throughout your body. This explains how your doctor can hear your heartbeat. Your heart is making that sound as it works. Every day, your heart pumps around 2,000 liters of blood.
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