Participant1 ECG BLOOD FLOW Cardiac Cycle Heart rate (BPD Amplitude (mV) sec Res
ID: 3511133 • Letter: P
Question
Participant1 ECG BLOOD FLOW Cardiac Cycle Heart rate (BPD Amplitude (mV) sec Resting1 O b84 Resting 20.678 Resting 3 lo.bSL 81719 40.6 1.b 8845 416 921 65 Average 0.67 39459667 41.7 Experimental 0.u 15.566 12.3 Experimental 6.79419.Iss Experimental .1T Average 82.530 9.7 159667 790836666 10.8 Participant2 ECG BLOOD FLOW Cardiac Cycle Heart rate (sec) BPM) Amplitude (mV) 2.6S 47.25 Resting 2 0.51 Resting 3.b39 93.896 45.2o Average :10.66% ja.i32332146703333 1 Experimentalb Experimental 93,451 Eyperinental 10,.686 81.463 Average0.66 93093333 9.52 98.260 , 2002 19Explanation / Answer
The experiment is significant as this lets us explore the effect of temperature on heart rate and blood flow. The heart rate increases when the heart needs to work harder resulting increased blood flow and cardiac output. During exercise for example, the body's temperature increases, this increases the heart rate to increase the blood flow to make more blood reach the skin surface so that heat can be radiated out of the body as to reduce the temperature of the body. Similarly in a cold environment to conserve the body's temperature blood flow was decreased because of a decreased heart rate. As the blood flow was decreased the circulating blood decreased it's exposure to skin reducing heat radiation from body and thus conserving and maintaining the body's temperature
In another physiological response induced by temperature was to raise the temperature. To do this a greater energy needs to be produced. The energy bis produced by increased cellular respiration for which the nutrients are supplemented by blood circulation. Therefore an increased cardiac output is required to meet the body's requirements. To achieve a higher cardiac output heart rate is increased.