The Nasal Cavity
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
Oxygen enters the bloodstream through the alveoli in the lungs. When you breathe, oxygen from the air diffuses across the thin walls of the alveoli into the surrounding capillaries, where it binds to hemoglobin in red blood cells for transport throughout the body.
After consuming sugar, it typically takes about 15-30 minutes for it to enter the bloodstream.
The squeeze thng
yes
An embolus will form in the bloodstream when a foreign substance enters.
You breathe in through your nostrils or mouth, which allows air to enter your respiratory system and reach your lungs where oxygen is absorbed into the bloodstream.
except for the obvious like sucking on a pen you can simply draw day to day doodles or notes on your hand and the ink will enter your bloodstream.
Air pollutants can enter the bloodstream primarily through the respiratory system. When inhaled, fine particulate matter (PM2.5) and gases like carbon monoxide and volatile organic compounds can penetrate the lungs and pass through the alveolar membranes into the bloodstream. Additionally, certain pollutants can enter the body via the skin or gastrointestinal tract if they are absorbed or ingested. Once in the bloodstream, these substances can lead to various health issues by affecting organs and systems throughout the body.
depends on how you do it with a needle or snorting it
Through the alveoli in your lungs.