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Why is oxygen not exchanged directly through the body surface in humans?
Wiki User
∙ 12y ago
Humans are designed to use lungs for efficient oxygen transfer. The body surface (called skin or the epidermis) is designed more to keep harmful things out than to let oxygen in.
Wiki User
∙ 12y ago
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Which organ system in humans in most directly involved in the transport of oxygen?
pulmonary - lungs -- circulatory helps transport as well.
Do humans absorb oxygen through the skin?
no. we breathe in oxygenin the air and then cellular respiration happens.look it up kid!!!
Why can mercury spilled on the floor not be collected by hand?
Mercury is extremely toxic to humans (and pretty much everything else as well). It can be absorbed quite easily through the skin and the vapour is also easy to breathe in; this makes it quite dangerous and unhealthy to try it. Even if this wasn't so, mercury is liquid at any temperature above -38oC/oF, and its density and surface tension mean that you physically can't pick it up with your hands.
What are the effects of too much nitrogen in a body of water?
Nitrogen has no effect on water although it can be dissolved. Nitrogen is not hazardous in itself, and in water is not dangerous. However as your body has no use for it when breathed, it can asphyxiate. But in water it has no effect on large biological organisms. High nitrogen content can cause algal blooms in surface areas of water. However, nitrogen can be processed into nitrates by bacteria which can kill fish. Excess nitrogen is removed by humans through urea.
How are spent fuel rods dangerous to humans?
it is a poison to humans. it is the smell that it is.
How do humans gain energy from plants directly and indirectly?
Humans gain energy directly from plants by eating the plants themselves in the form of fruits, vegetables, and grains. We gain energy from them indirectly by eating the meat of animals that eat plants.
What layer of the earth have humans drilled into the earth?
Humans have never drilled past the crust into the mantle. We have, however, seen the mantle through "hot spots" like volcanoes where the mantle is closer to the surface.
How do humans benefit from the stage of the water cycle when water on the surface sinks deep from the ground?
The water is cleaned as it is filtered through rocks and soil.
How do humans benefit from the stage of the water cycle when water on the surface sinks deep into the ground?
The water is cleaned as it is filtered through rocks and soil.
How is carbon exchanged between humans and plants?
carbon is released by the human which is enhaled by the human n there fore the cycle moves on
Where does the exchange of oxygenfood nutrients and waste materials take place?
You don't specify which organism you are asking about, but I assume you mean in humans. These processes happen all over the body between the blood capillaries and the cells. If you mean exchange with the outside world, then oxygen is exchanged in the lungs, food nutrients in the small intestine, and nitrogenous waste in the kidneys. However, waste carbon dioxide is exchanged through the lungs and other wastes through the skin.
What is another name for the dorsal surface?
another name for the dorsal surface in humans is posterior surface and for animals it is superior surface
Do human change Earth's surface?
Humans change the earth's surface by gardening.
What is the name of the respiratory surface in humans?
It is the lining of the alveoli that acts as our respiratory surface.
In humans the respiratory surface is the walls of the?
alevoli
Which process in humans would most directly affected if peristalsis were to stop?
If peristalsis were to stop, the movement of food through the gastrointestinal tract would be most directly affected. Peristalsis are muscle contractions that take place in the digestive tract.
Which process in humans would be most directly affected if peristalsis were to stop?
If peristalsis were to stop, the movement of food through the gastrointestinal tract would be most directly affected. Peristalsis are muscle contractions that take place in the digestive tract.
