yes breathing with your mouth is completely safe you have a nasal valve that protect you from germ entrance
There Is two kinds of respiration through your mouth and also your nose
To allow the air to enter the body. The air can enter through either the nose or through the mouth.
Buccopharyngeal respiration is a primitive form of respiration observed in some amphibians, where they can exchange gases through the lining of their mouth and pharynx. This adaptation allows them to breathe through their mouth when their nostrils are blocked by mud or water.
mouth
Tissue respiration, or internal respiration. you are probably looking for aerobic respiration
Toads exhibit a unique method of respiration known as buccal respiration, where they use their mouth to facilitate gas exchange. When a toad opens its mouth, it lowers the floor of its buccal cavity, allowing air to flow in. The toad then closes its mouth and raises the floor, pushing the air into the lungs for oxygen uptake and carbon dioxide expulsion. This method is particularly important when the toad is underwater or in moist environments, complementing cutaneous respiration through their skin.
You inhale air through your nose or mouth, which contains oxygen. This oxygen is then absorbed into your bloodstream through your lungs and delivered to your body's cells for cellular respiration.
mouth and nose together.
mouth and nose together.
No, all modern amphibians do not only use their lungs for respiration. They can also respire through their skin and tissues in the lining of their mouth.
pinch nose shut
Frogs have multiple ways to breathe. While underwater, the frog's skin grabs oxygen directly from the water. While it's on land, it uses its lungs, but unlike humans, who use the diaphragm muscle to pull air in, the frog has to puff out its throat to get the air in. This is what causes the iconic frog ribbit.