8 Circulatory/Respiratory System Cooperation Allow oxygen to enter the blood/body without jeopardizing the health of the cellsKeeps deep body cells away (safe) from external environment
9 Feedback Systems Necessary to retain Homeostasis Involve all 3 systems discussedRespiratoryCirculatoryNervous
10 F.S. Example Breathing Rate During Exercise Processes in body speed up Production of CO2 increasesCO2 causes the blood to become more acidic
11 F.S. Example Breathing Rate During Exercise Nerve cells detect acidity Cells send signal to respiratory centers of the brainRespiratory centers respond by stimulating the diaphragm and rib muscles to contract more rapidly
12 F.S. Example Breathing Rate During Exercise Breathing rate is increasedIncreases rate O2 brought into body and the rate at which CO2 is releasedBlood becomes less acidic
13 F.S. Example Breathing Rate During Exercise Sensory receptors detect pH changeInfo is relayed to respiratory centers in the brainBrain signals diaphragm and rib muscles to slow contraction
14 F.S. Example Automatic response Regulates the acidity of the blood! You don’t have to think about your breathing rate!Regulates the acidity of the blood!
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