Respiratory System # 5 Respiratory control 19 November 2008 Respiratory System # 5 Respiratory control Respiration and ventilation during exercise Lab this week: 3 Respiratory Case Studies on website. Bring calculator and textbook to lab Test # 3: Monday, 24 November Coverage is posted to website

Cervical spinal cord injury Figure 13.32 Negative feedback loop for control of blood gases Cervical spinal cord injury

Figure 13.22

Name the components of the negative feedback loop Figure 13.40 Name the components of the negative feedback loop

Respiratory Physiology during Exercise Figure 13.41 Respiratory Physiology during Exercise Blood gases and pH change very little except when exercise is intense. Therefore, changes in minute ventilation are not the result of negative feeback. How can this be?

Experience, learning, modification of motor program, feed forward! Figure 13.42 Negative feedback operates! But the changes in ventilation at the onset and offset of exercise cannot be explained by negative feedback. Experience, learning, modification of motor program, feed forward!

Figure 13.43 Integrator

Board diagram of the response to ascending to high altitude including adaptation to prolonged time at high altitude. Be able to diagram the response to and changes in blood gases and ventilation for Holding your breath Being in a closed room where Oxygen is being depleted by your own breathing, the response to breathing carbon monoxide as some do who commit suicide.