Pick three factors that can change your heart rate. How do they change your heart rate? (i.e. faster, stronger, slower, weaker) For each give another system affected by the change in heart rate.
Temperature
-Can either increase or decrease heart rate, higher temperature generally means faster heart rate, and the inverse is also true. This can also affect the muscular system, with lack of heat slowing down heart rate and blood flow, making movement/reaction delayed.
Alcohol
-Generally decreases heart rate, relaxes nervous system and dull motor functions.
Adrenaline
-Tends to increase heart rate, all the blood flowing at such a high rate makes the nervous system and motor functions seem to react faster.
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