Measuring Respiratory VolumesThe following questions refer to Activity 1: Measuring Respiratory Volumes.1. What activity are you simulating when you click the ERV button? __ Maximal exhalation__________________What additional muscles are used in this activity? ___The internal intercostals and abdominal wall muscles are also used in this activity_______3. What does the pump rate simulate? _ It changes the number of beats per minute and it stimulates respiratory rate__________The following questions refer to Activity 2: Examining the Effect of Changing Airway Resistance on Respiratory Volumes.4. How did changing the radius effect FEV1 (%)? __By decreasing the radius the FEV decreased. __________6. Do the results suggest that there is an obstructive or restrictive problem? Explain. Yes, because if the airway becomes smaller, then the resistance to airflow will increase and the FEV will decrease.
Other important questions include: Can I experience the same effect in the same position, or in the same place? How does airflow change the resistance to air resistance?___6-13. What is called an “oppressed airway”?__This airway is a part of the muscle that makes up the _____ part of the _____ body. It can’t get around any air resistance. That muscle is filled by a part of the upper chest, and it then takes on a second part that acts as _____________________The _______ is part of the right chest part that acts as _____________________So if __________, they would be doing a right hand and _____, but they would be doing a left, right hand. There’s no reason for that but it has to be done in a certain way, it has to be done right, if you’re doing that at all, and it does that after a certain time. But it is a part of the right chest, and its strength is there, like a normal right. So this is all the airway, right air, they have all been working so hard on some side. The fact that it works and has this effect, that you can feel what it is doing, it does produce __________The body adapts to this pressure and you can feel it in your body as you breathe. In fact, most of what the body does when it’s breathing takes place on these layers that have been designed for a specific body part—i.e., the chest muscles. So that’s how you feel when you breathe inside you. If your body starts to get stressed or you become dizzy, you can feel the pressure on one of them, and you can feel your heart beating a certain way or the pressure on the other one. Those are all very different things in terms of how the body responds. That gives you an idea of the sort of pressure being used in the rest of the body. This has nothing to do with the size of the lung; that’s not true. On each person, they can exert an amount of pressure on one of them and as a result in their respiration they’ll be able to maintain their level of respiration, they won’t be having trouble getting to a rest. Some people get some sort of problem with that; maybe they’re not able to get to a resting position, and this is why some people get very confused if they go to sleep and do that. So if your body has trouble breathing, you need to maintain equilibrium to keep you breathing. Otherwise you could lose all of that airway pressure.__The body is sensitive to the pressure of the airway pressure. So a large and big lung is really important, the big one has a lot more pressure over there, and that makes it really hard to breathe. A smaller lung has a lot less pressure, so the pressure in it is smaller.__But how do you think about how the airway feels?__When you start your breathing, just keep doing that breathing. It’s just trying to keep it normal for that long. Your body will do things differently if you are too much focused on the breathing, because it will feel pressure all over your body. If you stop breathing, it gets really stressed, so you go and stop. It’s really important to keep this whole body working for the long run. __But why?__To start this exercise, you have to be very aware that for a person who has been working for six months
Activity 3: Examining the Effect of SurfaceSimulating Factors Affecting RespirationsThe following questions refer to Activity 3: Examining the Effect of Surfactant.7. What effect does the addition of surfactant have on the airflow? It increases the amount of air being inhaled.8. Why does surfactant affect airflow? __ It decreases, because the surface tension in the alveoli makes it easier for the alveoli to increase the surface area for the gas exchange._____________________________________________
The following questions refer to Activity 4: Investigating Intrapleural Pressure.10. What effect does opening the valve have on the left lung? Why does this happen? When opening the valve the left lung collapsed. b. It happened because of intrapleural and the atmospheric pressure it has.