Your answer should be <span>prophylaxis</span>
Answer: Dude psst its vitamin B-12.
Explanation:
COPD, or Chronic Obstructive Pulmonary Disease, pretty much says it all. In COPD the Bronchioles (the pathways of air to the Aveoli), become inflamed and are occluded by mucus, because the Cilia which are responsible for pushing it out of the tract have been damaged. Because of the narrowing, the Aveoli attempt to increase the surface area so that more oxygen can be absorbed by the lungs, however this can lead to a problem as the dead space (space that is not the aveoli and can be absorbed) is then expanded as well, which leads to shortness of breath.
A) the exchange of gases throughout the body
There are many parts of the peripheral nervous system, but options are not listed below.
I will use my best prediction using deductive reasoning to proves which is part of the PNS - peripheral nervous system.
The peripheral nervous system is defined as a bundle of neurons, that is neither the brain or spine (which is in the CNS - central nervous system)
As you may know the PNS, is broken down into two pieces.
The autonomic and somatic nervous system.
The autonomic nervous system as you may know is the part of the PNS, that controls involuntary activities. e.x breathing, heartrate, blood pressure, temperature, etc.
The somatic nervous system on the other hand is voluntary, and is associated with the feelings of the body. (heat, cold, touch, smell)