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They are not really red and blue. This is seen in preserved animals (and cadavers) and in drawings to show which are higher in oxygen (red) and lower (blue). In general, you also can see than veins are shown in blue and arteries are red.
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Why do capillaries have spaces between endothelial cells?
So that white and red blood cells can pass through the capillaries
Where is gas exchanged between the blood and body cells?
The gas exchange between the blood and the somatic cells (body cells) takes place in the capillaries of the circulatory system. Oxygen rich blood leaves the heart through the large arteries, moving into the arterioles, smaller vessels carrying oxygen rich blood, on to the capillaries. Capillaries are tiny vessels which have porosity in their walls, through which gasses and nutrients may exchange. The capillary beds, when looking at a diagram of the circulatory system, the blood vessels turn from red to blue signifying oxygen rich (red) to oxygen poor blood. The blood then begins its journey back to the pulmonary artery and heart, through the venules and veins. Hope that answers your question!
What do the capillaries carry to the body cells?
Capillaries are very thin blood vessels. Oxygen and nutrients and hormones can pass through the walls of the capillaries and reach the body's cells, while red blood cells remain in the capillaries.
How does oxygen get from red blood cells to body cells?
capillaries
What is the difference between a red and blue gas can?
Red fuel containers are for gasoline. Blue are usually for diesel fuel. Some water containers are also made blue and look sort of like gas cans, so check to make sure it is actually meant for fuel before filling it. Otherwise the plastic might turn out to be not fuel-resistant and melt.
Where are the capillaries place at?
The capillaries are in between the red and blue veins :)
What is the physical difference between red light and blue light?
The differences between red and blue light are Red stands for n00b and blue stands for b00b! your mum
What is the difference between red and blue almond joys?
the color
What the difference between red light and blue light?
red has a lower frequency and a longer wavelength than blue
What is the difference between red blue and white stars?
blue and white stars are hotter than red stars (and newer).
What is the difference between the red 3DS and the blue 3DS?
The only difference is the colour of the external shell.
What is the difference between black-red and Black-blue star-tattoos?
Simple one is a black-red star and the other is black-blue star. The only difference is the color.
What is the main difference between a light wave that produces the color blue and a light wave that produces the color red?
The difference is in the size of the wavelength blue is smaller than red.
What is the difference between blue and purple?
Blue is a primary color. Blue and red mix to make purple, which is a secondary color.
What is the difference between red green and blue light?
they are all different colours
What is the difference between red and blue grade copper pipe?
Wall thickness
What is the difference between mixing colored lights and mixing pigments?
biggest difference is that in light- the primary colors are red blue and green. Whereas in paint pigments its red blue and yellow
