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What else can I help you with?
Are capillaries part of the lung?
Yes, capillaries form a network around the alveoli. It is through the alveolar walls and into the capillaries that oxygen enters the blood stream. Carbon dioxide leaves the blood by the reverse route.
How does oxygen travel in humans?
On a very basic level, it is absorbed through capillaries in the lungs into red blood cells in the the blood stream.
Why substances enter and leave the blood stream through the walls and capilliaries amd not arteries and veins?
Oxegen and Carbon dioxide
What is the network of vessels that returns fluid to the blood stream?
arteries
Why do capillaries have such thin walls?
Capillaries have thin walls to optimise the level of diffusion of oxygen and other nutrients in the blood stream to the surrounding cells.
What are the organs of the pulmonary system where gas exchange occurs?
Gasses are exchanged mostly through the cells
Where does blood and fluid exchange occur?
The blood enters the capillaries in single file ( capillaries have very small diameter so blood flow through them as in single line) there by diffusion the food passes towards the cell and waste from the blood enter the blood stream
What is the function of the heart in detail?
the vein and arteries help the blood go in, through, and out the heart............. I hope this answers your question... even though I know ur gonna take this answer and use it on your homework.
Which group of fats are absorbed pass through the intestinal cells and diffuse into capillaries and thus directly into the blood stream?
Water-soluble glycerol and short and medium chain fatty acids.
Where does the blood get the oxygen and digested food that it delivers to the different parts of the body?
From what I remember of secondary eduation i think the nutrients and oxygen from the food turn into enzymes in the intestines and them they are absorbed through the wall of the intestines and into the bloodstream. Hope I helpd! =)
Where is oxygen absorbed in the blood stream?
Oxygen is absorbed in the blood stream primarily in the lungs through the process of diffusion. When we breathe in, oxygen from the air enters the lungs and diffuses across the alveoli into the capillaries, where it binds to hemoglobin in red blood cells and is transported throughout the body.
Why is the blood flow in the capillaries slower than the arterial and venous vessels?
The capillaries are smaller and made of a thinner 'material' than arterial, meaning they are unable to take a high pressure from the blood that comes straight from the heart. Also, I'm fairly sure that this is where things disperse, i.e. capillaries in the lung take oxygen in let carbon dioxide out. Yep, so main reason is they are smaller, thinner and used to disperse substances into/out the blood. hope this helped!
