I believe what your talking about is a respirator.
The lining of the mouth is known as the oral mucosa, which is a mucous membrane that covers the inside of the mouth. It plays a protective role by helping to prevent infections and injury, and also allows for sensations such as taste and temperature to be detected.
The first segment on an earthworm is called the prostomium. It is a fleshy lobe that covers the mouth and helps the earthworm sense its environment.
In most fish species, the number of times the mouth opens and closes is unrelated to the number of times the gill covers move. The two movements serve different functions: the mouth is used for feeding and respiration, while the gill covers are specifically involved in respiration. These movements are controlled by different mechanisms in the fish.
The mouth lining is the soft tissue that covers the inside of the mouth, including the cheeks, lips, tongue, and roof of the mouth. It is made up of mucous membranes that help protect the underlying structures and aid in functions such as speech and eating.
It is called a delta.
it is called a prosterium.
A GREAT WHITES MOUTH ITS JAWS EXTEND OUT OF ITS MOUTH WHEN ATTACKING, THIS IS TO PREVENT ITS LIPS FROM GETTING CUT
they are called salivary glands that helps lubricate the mouth to prevent dryness.
The lining of the mouth is known as the oral mucosa, which is a mucous membrane that covers the inside of the mouth. It plays a protective role by helping to prevent infections and injury, and also allows for sensations such as taste and temperature to be detected.
To prevent your hands-in-mouth toddler from getting sick or ingesting harmful substances, make sure to keep all cleaning products, medications, and other potentially dangerous items out of reach. Encourage regular handwashing and teach your child not to put their hands in their mouth. Supervise them closely to prevent accidental ingestion of harmful substances.
humming birds
A mask that a doctor uses is called a surgical or procedure mask. It covers the mouth and nose to prevent the patient from getting an infection. It also keeps the doctor from breathing in anything harmful.
Pioneers wore bandanas over their mouth to prevent dust from getting it into their body's. Hope that helped:)
The garment in question is called an abaya. It is combination of the hijaab (which covers a woman's hair) and a niqab (which covers a woman's mouth).
That is the Jain belief, or 'religion'. It is an offshoot of Hinduism. People who practice that faith are called, "Jainists".
The first segment on an earthworm is called the prostomium. It is a fleshy lobe that covers the mouth and helps the earthworm sense its environment.
-Skin -Breathing Passages -Saliva -Bacteria in your mouth. Good luck! Hope I helped. :)