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Why do lungs have small external openings when large openings would let in more air?
There is an advantage to a smaller opening which is that it is easier to trap pathogens like fungal spores and bacteria. This is often cited as to why the lungs don't have openings with a shorter pathway that opens in the chest or back. Some pathogens are trapped in saliva or mucus in the throat but most of it is caught by the mucus in the trachea and bronchi.
What else can I help you with?
Are your lungs small?
No they take up a large fraction of your chest
What are the organs in?
small intestine large intestine teeth heart lungs
Why are the lungs and the small intestines lined by a very large number of capillaries?
the small intestine is lined with villi
Can the large intestine or small intestine cause fluid build up in lungs?
No, neither in lungs nor in any other organs.
What are the main organs of digestion?
the large intestine, small intestine, pancreas and mabey lungs
What are the 3 most important parts of the digestive system?
stomach, large intestine, and small intestine- ur welcome!
Can you become a cop if you have a heart defect?
kidney, lungs, stomach, small intestine, large intestine
What are the Types of screens in sewage system?
Screens are of Fine screens (small openings) Coarse screens (relatively large compared to fine)
What are small openings on the underside of the leaf?
the small openings on the underside of a leaf allow water to come in and replenish the leaf :D
Do tigers only have lungs?
Tigers dont just have lungs. Tigers have hearts, livers, stomachs, a small intestine, a large intestine, a genital area etc.
Do bugs have lungs?
insects have trachea breathing systems which means a tunnel from outside reaches every single cell in the insect body. some areas in these tunnels are loose and called air sacs which resemble lungs in function but anatomicly they do not have lungs the way we do.
How do scorpions breath?
Scorpions breathe through four pairs of book lungs on the underside of the abdomen. Great link I found on scorpions for you. Click the link below labeled "scorpions"Scorpions have a six-segmented abdomen. On the underside of each of the last four segments are small paired openings called stigmata. These openings allow air to enter and leave the lung-sacs inside the abdomen.
