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Respiratory System
The respiratory system includes the lungs and the airway. The questions in this category focus mainly on the anatomical and physiological processes associated with breathing.
2,890 Questions
What if one of your ribs is swollen and it hurts to breathe?
could be your kidneys, you should consulte your doctor immedialtly it could be serious
How does the repiratory system help the rest of the body?
The work of respiratory system is to filter the air which is being intaken, then absorb the oxygen from alveolies which are present in the lungs into the blood so that each and every part of the body could get the oxygen to be alive and to carry vital body functions.
"Crackles" are a very descriptive term for the sound whose medical name is rales. Rales may be a sign of pneumonia, among other conditions.
What are the bronchial tubes and what do they do?
The bronchial tubes (or bronchi) are the large tubular structures within the lungs. These carry air into the lungs from the trachea. They branch into smaller tubes called bronchioles, and then to the smallest tubes that contain the alveoli (air sacs) of the lungs.
Which phase of breathing inhalation or exhalation is considered active and passive?
Inhalation is an active process and exhalation is a passive process
In a similar way to what you do when your car breaks down (forgive the analogy) - a bit of your car does not work, it prevent's your car from running properly. You go to the mechanic and find out what's wrong, they say they have to order in a car part for you. However the new car part is not quite the same; until it's put in place it's not possible to know whether it's going to work or not. You take your car back to them to have the new part put in. Hopefully it works, or at least does a decent attempt at working...
It's a case of replacing the bit of you that doesn't work, with a bit that hopefully does work. Obviously with a lot of post-transplant medication afterwards.
What organ system moves air into around and out of your body?
The respiratory system is the organ system that moves air into and out of your body.
Is it dangerous to breathe pure oxygen?
We breathe air that is 21 percent oxygen, and we require oxygen to live. So you might think that breathing 100 percent oxygen would be good for us -- but actually it can be harmful. So, the short answer is, pure oxygen is generally bad, and sometimes toxic. To understand why, you need to go into some detail …
Your lungs are basically a long series of tubes that branch out from your nose and mouth (from trachea to bronchi to bronchioles) and end in little thin-walled air sacs called alveoli. Think of soap bubbles on the end of a straw, and you'll understand alveoli. Surrounding each alveolus are small, thin-walled blood vessels, called pulmonary capillaries. Between the capillaries and the alveolus is a thin wall (about 0.5 microns thick) through which various gases (oxygen, carbon dioxide, and nitrogen) pass.
When you inhale, the alveoli fill with this air. Because the oxygen concentration is high in the alveoli and low in the blood entering the pulmonary capillaries, oxygen diffuses from the air into the blood. Likewise, because the concentration of carbon dioxide is higher in the blood that's entering the capillaries than it is in the alveolar air, carbon dioxide passes from the blood to the alveoli. The nitrogen concentration in the blood and the alveolar air is about the same. The gases exchange across the alveolar wall and the air inside the alveoli becomes depleted of oxygen and rich in carbon dioxide. When you exhale, you breathe out this carbon dioxide enriched, oxygen-poor air.
Now what would happen if you breathed 100 percent oxygen? In guinea pigs exposed to 100 percent oxygen at normal air pressure for 48 hours, fluid accumulates in the lungs and the epithelial cells lining the alveoli. In addition, the pulmonary capillaries get damaged. A highly reactive form of the oxygen molecule, called the oxygen free radical, which destroys proteins and membranes in the epithelial cells, probably causes this damage. In humans breathing 100 percent oxygen at normal pressure, here's what happens:
- Fluid accumulates in the lungs.
- Gas flow across the alveoli slows down, meaning that the person has to breathe more to get enough oxygen.
- Chest pains occur during deep breathing.
- The total volume of exchangeable air in the lung decreases by 17 percent.
- Mucus plugs local areas of collapsed alveoli -- a condition called atelectasis. The oxygen trapped in the plugged alveoli gets absorbed into the blood, no gas is left to keep the plugged alveoli inflated, and they collapse. Mucus plugs are normal, but they are cleared by coughing. If alveoli become plugged while breathing air, the nitrogen trapped in the alveoli keeps them inflated.
The astronauts in the Gemini and Apollo programs breathed 100 percent oxygen at reduced pressure for up to two weeks with no problems. In contrast, when 100 percent oxygen is breathed under high pressure (more than four times that of atmospheric pressure), acute oxygen poisoning can occur with these symptoms:
- Nausea
- Dizziness
- Muscle twitches
- Blurred vision
- Seizures/convulsions
Such high oxygen pressures can be experienced by military SCUBA divers using rebreathing devices, divers being treated for the bends in hyperbaric chambers or patients being treated for acute carbon monoxide poisoning. These patients must be carefully monitored during treatment.
What is the purpose of the alveoli and where is it located?
Alveoli are tiny sacs of air located in your lungs. There are millions of them in your lungs, and they fill up with oxygen when you inhale. They greatly increase the surface area of the lungs so that more oxygen can enter your bloodstream.
How do you give yourself the Heimlich maneuver?
I really, really hope this wasn't something asked in real-time.
The first thing to do is call 911 or your local emergency number. Make as much noise (grunting, humming, whatever) as you can and drop the phone but DON'T hang it up.
Even if you can't speak, someone will be sent to investigate the phone call.
If you can still breathe, cough, or talk at all, the heimlich won't work. Just keep coughing, try to take deep, slow breaths between coughs, and keep working at it.
If you're unable to breathe, cough, or talk, the easiest way to self-administer the heimlich is with the back of a chair or other similarly-shaped sturdy object. Bend over the back of the chair with the arms or back just under your ribcage, then allow yourself to drop slightly so that your body weight causes you to "fall" onto the back of the chair. This will create pressure in your lungs and hopefully, expel the obstruction.
What process moves oxygen from the alveoli to the capillaries?
The process is usually referred to as diffusion. This happens when concentrations in different areas interchange to give a more even mixture. Going through a membrane ( in this case the lung's alveoli wall ) would more properly require the process to be called osmosis, but that term is not usually used medically.
What happens to the diaphragm when you inhale and when you exhale?
When the diaphragm contracts and moves lower, the chest cavity enlarges, reducing the pressure outside the lungs. To equalize the pressure, air enters the lungs. When the diaphragm relaxes and moves back up, the elasticity of the lungs and chest wall pushes air out of the lungs.
Where does the human respiratory system start?
The respiratory system starts at the nose (and mouth) and ends at the alveoli in the lungs
What is the normal respiratory drive?
The average healthy individual is stimulated to breath by the carbonic drive, or increased levels of carbon dioxide. When our paco2 levels increase our internal ph levels decrease causing us to become acidotic. Therefore, we breathe more in an attempt to blow of the excess paco2 subsequently increasing our ph and regaining homeostasis.
What is the purpose of the fight or flight response?
Most of the adrenaline in the human body is released by the adrenal gland. The adrenal gland is a part of the sympathetic nervous system, a branch of the nervous system that regulates the classic stress response and has numerous roles in other normal body functions. Adrenaline, called epinephrine by scientists in the US, is the major hormone released during the classic stress response (also called the fight-or-flight response), which is why it is often considered a fight-or-flight hormone. It has several actions in the body that make it good at this job: it dilates the pupils to increase the amount of light that enters the eyes, it causes sweating to help dissipate heat, it increases blood flow to the muscles, it increases the heart rate and force of contraction, and it makes glucose available in the blood for use by other organs.
How is the bell jar system like the respiratory system?
- The diaphragm in bell jar model is pulled down during inhalation, whereas in actual respiration, the diaphragm is flattened.
- The wall of the bell jar is rigid, whereas the thoracic wall is flexible and changes during breathing.
- the bell jar cavity is filled with air, whereas the thoracic wall is filled with body fluid.
How is the function of the respiratory system related to the cardiovascular system?
this gonna be asewmo
What foods prevent you from going hypoglycemic?
healthy foods is always the answer. i am hypoglycemic and all i do to never feel shaky is eat very healthy whole grains, fruits, vegitables, meats. MILK!
Where is th respiratory rhythmicity center located?
there is a specific group of cells found in the medula (part of the brain stem) which regulate the rhythm of breathing, hence the name (of this cellular formation) the Medulary Rhythmicity Center.
Is the voice box a part of the respiratory system?
Yes, because the nostril's hairs filter the air before it can go into the esophagus. The hairs capture the mucus and keep it so that the lungs dont get full of mucus.
Can mining bauxite affect the respiratory system?
There is little evidence of significant adverse effects on respiratory health associated with bauxite mining.
There is little evidence of significant adverse effects on respiratory health associated with bauxite mining.
How does smoking affect gas exchange in the lungs?
well, the effect is very basically, scaring of the lungs due to the amount of coughing. in the gas exchange, normally less oxygen is absorbed because of the carbon dioxide from smoking, which normally is the cause of chronic bronchitis. emphysema is just where a person gets loads and loads of infections which makes the person ill, cough alot, get scares on the lungs which weaken them meaning alveoli might not absorb as much oxygen into the blood stream or as much carbon dioxide out of the blood. THIS IS A VERY BASIC TASTE OF THIS, for more, just type this into google "define: (the name of the disease goes here)"
How do aerobic and anerobic resiration differ?
Fermentation is the process of deriving energy from the oxidation of organic compounds, such as carbohydrates, using an endogenous electron acceptor, which is usually an organic compound.[1] This is in contrast to cellular respiration, where electrons are donated to an exogenous electron acceptor, such as oxygen, via an electron transport chain. Fermentation does not necessarily have to be carried out in an anaerobic environment, however. For example, even in the presence of abundant oxygen, yeast cells greatly prefer fermentation to oxidative phosphorylation, as long as sugars are readily available for consumption.[2] Cellular respiration is the set of the metabolic reactions and processes that take place in organisms' cells to convert biochemical energy from nutrients into adenosine triphosphate (ATP), and then release waste products. The reactions involved in respiration are catabolic reactions that involve the oxidation of one molecule and the reduction of another.
