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Lungs
Lungs are a pair of elastic and spongy organs that help the body breathe. They are present inside the rib cage in thoracic cavity of humans.
3,922 Questions
The respiratory system is the first link in the process of oxygen delivery to the body's tissues. The transport of oxygen in the air you breathe to the alveoli in your lungs allows for the diffusion of oxygen into the blood stream.
Why does the internal structure of the lungs has an extensive surface area?
Lungs have large interior surface area because they're not just big bags. On the inside, they're full of a spongy network of smaller, smaller, and ever-smaller air passage-ways, ending in tiny dead-end sacs called alveoli. Every tube, sac, detour, fork in the road, branch, split-off, and tiny dead-end has walls with surface area.
The speed at which oxygen can be transferred into the blood stream depends on the collective surface area of the alveoli contained in the lung. That is why we have alveoli, filling the lungs like a sponge. We need the oxygen collected by the bloodstream in order to burn the energy that our body has stored, and a faster input of oxygen allows a faster burning of that energy - hence the advantage of having that maximized surface area.
One common result of many years' smoking is that the wall between two adjacent passage-ways shrivels up and disappears, and those two passageways merge and become one. That reduces the surface area in that tiny part of the lung. When it progresses to thousands of tiny parts of the lung, you start to notice it ... you're short of breath, because the interior surface area of your lung is reduced, and you can't grab enough of the oxygen from the air you take in. That's the condition called 'emphysema'.
What is the process by which oxygen enters the blood in the lung and leaves it in the body tissues?
Oxygen enters the lungs through inhalation. It is transfered through the thin alveolar tissue to the red blood cells of the pulmonary arteries through an intricate diffusion process. More specifically, the oxygen is bound by the hemoglobin contained within the RBC's. This oxygenated (red) blood is circulated throughout the body until it reaches the capillaries. Tissue is then supplied oxygen by a process called perfusion, the unloading of the oxygen bound within hemoglobin to the surrounding cells. The deoxygenated blood is returned back to the heart for a new cycle. The oxygen is to be used in oxidative phosphorylation (the creation of cellular energy) to continue healthy tissue function
What is the colour of the blood that leaves the lungs?
Blood that is rich in oxygen appears red. Blood that is poor in oxygen appears blue.
Arteries are tough, elastic tubes that carry blood away from the heart. Veins carry the blood to the heart.
What holds the breathing tubes to the lungs open?
The larynx or voice box provides a passage. but the alveoli help
Why is lung surgery necessary?
An incision is made to examine the lungs. Diseased tissue is removed and may be sent for biopsy. Following the surgery, drainage tubes may be placed in the chest to drain fluids, blood, and air
What is the cavity located between the lungs protects the heart esophagus trachea and bronchi?
thoracic cavity
Can you increase your lung capacity?
Yes, you can increase your lung capacity when you grow. When your grow you need more air, so your lungs grow with you. The taller you grow the more air you need!
Does a perch have a lung and gills?
No, they have gills to extract oxygen from water. and since they do that i do believe that they stay on the bottom or reef of the ocean or wherever they live!
What is a lung infection without fluid in lungs?
A thick mucous like substance called seamen. Its from taking it oral from infected or too many guys
What is the term that best describes cancer?
1. Noncommunicable disease.
2. Uncontrolled rate of human cell regeneration.
What happen to the nitrogen you inhale into your lungs?
you will sufficate die for the lack of oxygen
The first is correct only if the gas is nearly pure nitrogen, without significant oxygen. Otherwise, there will be no ill effects whatsoever.
The earth's atmosphere is 79% nitrogen, so everybody is breathing primarily nitrogen all the time! The fact is, the nitrogen does almost nothing except dilute the oxygen we breathe (which is about 20% of the atmosphere). This dilution is important -- breathing pure oxygen for prolonged periods is injurious.
What disease of the lungs is caused by buildup of damaged tissue in the alveoli?
There are several. Sarcoidosis, and sclerosis both essentially cause "scarring" of the inner lung tissue but the true cause of sachoid is unknown at present. Smoking generally causes COPD or chronic obstructive pulmonary disease which is a combination of chronic bronchitis and Enphizema. Sorry if my spelling is a bit off. Just sound it out. :)
The bronchi continue to divide into smaller and smaller branches until they end in air sacs. The air sacs in the lungs are called alveoli.
The lungs are part of which body system?
The lungs is the part of the nervous body system. It helps in take in oxygen and give out carbon dioxide.
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The lungs are part of the nervous system when you scream or talk. It is part of the respiratory system for when you breath in oxygen. It is part of the excretory system for when you breath out carbon dioxide.
