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The reason for this is that oxygen and carbon dioxide need to diffuse through this membrane very quickly to re-oxygenate the blood. The thicker the barrier, the longer the process, and since breathing is rather rapid it needs to happen fast.
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What is the function of simple squamous epithelium of the alveoli?
The alveoli is just one cell layer thick so that diffusion of gasses between the capillaries and the alveoli is easy. Simple squamous epithelium are found in the capillary walls and the alveolar walls. They are thin so diffusion is easy.
About how thick is hypha?
each hypha is exactly one cell thick.
Why some bacteria cannot be stained by grams method of staining?
Instead of one thick cell wall made of peptidoglycan they may have two thinner cell walls and the stain does not stick and is washed away.
Are there many cell walls or just one?
there is one per cell
What is one way that members of archaebacteria are different from eubacteria?
They have different types of cell walls and cell membranes.
Which body structures have wall one cell thick?
Fudi
What part of the lung is only one cell thick?
The alveoli
How thick are the walls of the capillaries that surround the lungs?
It is one to two cell thick
What does the alveoli and blood capillaries have in common?
they are both one cell thick to let the gases diffuse
How does thin walls help the lungs in gaseous exchange?
No, the alveoli wall should be as thin as possible, i.e. one cell layer thick, in order to make the diffusion distance for gas exchange as short as possible.
What is the function of simple squamous epithelium of the alveoli?
The alveoli is just one cell layer thick so that diffusion of gasses between the capillaries and the alveoli is easy. Simple squamous epithelium are found in the capillary walls and the alveolar walls. They are thin so diffusion is easy.
Why are alveoli only one cell thick what are the benefits of this thickness?
To allow for quick and efficient gas diffusion.
What is the tiniest blood vessels with walls are only one cell thick are?
"capillaries"
How are oxygen carbon dioxide and other gases exchanged in the lungs and body tissues?
In the lungs, the respiratory zones end in sacs called alveoli, which are the site of gas exchange. The alveoli have walls only one cell thick, and are surrounded by pulmonary capillaries which again have walls only once cell thick; gases diffuse, along their concentration gradients (i.e. from the area of high concentration to the area of low concentration), through these two thicknesses of cells. You can also find this on Wikipedia.com
What is the name of a blood vessel whose walls are only one layer thick that starts with c?
Capillaries are one cell thick.
What are the characteristic of alveoli in the lungs?
Large surface area due to the combined spherical shape (600 million alveoli = 80 m2) Flattened epithelial cells of alveoli and close association with capillaries Short diffusion distance from alveoli to blood (0.5-1.0 um) Dense capillary network Moist surface for the solution of gases
When in the lungs does the blood absorb both oxygen and carbon dioxide?
The Carbon Dioxide is not absorbed into the blood it is only the oxygen. When you breathe in, the air travels down your windpipe, down the bronchi and then down the bronchis. On the end of the bronchioles, there are sacs called alveoli. These have a good blood supply surrounding them. The blood is absorbed through this small sac. The reason it can get through is that the walls of the alveoli are only one cell thick.
