The Nasal Cavity
the esophagus
nostrils
hiya
Air can enter the body by the mouth or the nose. Air then goes down the windpipe to the lungs where it can enter the bloodstream.
carbon dioxide can not enter the bloodstream through the air scars because if it does there would be a hard time to breathe carbon dioxide doesn't have to do with anything about the air scares in the breathing area
It enter when you breathe. You let go of Carbon in your body when you breathe out, and let fresh air or oxygen enter your body when you breathe in.
The squeeze thng
yes
An embolus will form in the bloodstream when a foreign substance enters.
Through the alveoli in your lungs.
depends on how you do it with a needle or snorting it
First blank on the first question is Stomach, and second blank is Bloodstream.
Vitamins that are water- soluble directly enter the bloodstream. Examples of these vitamins are B vitamins, biotin, pantothenic acid, folate and vitamin C.
Mainly in Small intestine.
yes