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Activity 2: Grades 5-8
Watch Your Pressure
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you have learned in the segment "Angry
at Heart," stressful situations result in a variety
of body changes. The changes associated with the "fight or flight"
response are products of increased blood levels of the hormone,
adrenaline (aka epinephrine). This chemical messenger produces
several body changes including elevated blood pressure and increased
pulse rate. These actions increase blood flow and along with
increased circulation to arms and legs, allow the animal to
increase appropriate physical exertion capabilities. |
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