Effects Of Various Stimuli On Heart Rate

Effects Of Various Stimuli On Heart Rate

Taro Oike

The average resting heart rate for an adult human is 60-80 Beats per minute, however there are multiple factors that may have an affect on it. The heart beat has semi intrinsic control of itself meaning the electrical impulses that stimulate the heart muscles to contract are generated inside the heart at patches of nodal tissue (SA/AV nodes). The heart can also be influenced externally by the medulla oblongata via the parasympathetic or the sympathetic nervous system. The sympathetic nervous system is responsible for fight or flight responses so it will cause your heart rate to increase and supply more oxygen to skeletal muscles. The ...

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in physical activity to supply your heart with more oxygenated blood faster. Eating a large mean can also increase your heart rate because extra blood has to be directed to the digestive organs. Finally, a high body temperature will also increase the rate at which the heart beats because it has to pump more blood to the skin to cool it down while maintaining blood flow to other organs.
The opposite effect occurs when the body is too cold; less blood is pumped to your extremities to maintain your internal temperature. Your heart rate can also be decreased by holding your breath because your parasympathetic nervous system is trying to conserve oxygen. Depressants can cause a decrease in heart rate but stimulants such as caffeine have the opposite ...

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Effects Of Various Stimuli On Heart Rate. (2018, March 6). Retrieved August 14, 2018, from http://www.essayworld.com/essays/Effects-Of-Various-Stimuli-Heart-Rate/106677
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"Effects Of Various Stimuli On Heart Rate." Essayworld.com. March 6, 2018. Accessed August 14, 2018. http://www.essayworld.com/essays/Effects-Of-Various-Stimuli-Heart-Rate/106677.
"Effects Of Various Stimuli On Heart Rate." Essayworld.com. March 6, 2018. Accessed August 14, 2018. http://www.essayworld.com/essays/Effects-Of-Various-Stimuli-Heart-Rate/106677.
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PAPER DETAILS
Added: 3/6/2018 12:54:57 PM
Submitted By: Pyro_salmon
Category: Health & Medicine
Type: Premium Paper
Words: 332
Pages: 2

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