Answer
It is called the upper labial frenulum.
That tissue is called the maxillary labial frenum.
lower labial fenulum
The flap of skin at the elbow is called a wenus.
He had a smiley piercing. That's the flap of skin that holds your upper lip and your gums together.
The flap of skin that shuts off the passage to the lungs is called the epiglottis.
Skin attaches to a muscle called Cuditicial.
it is called a prosterium.
It is called PINNA
The flap of skin under the chickens beak is called a wattle
a turkey's dewlap is the flap of skin under its neck. Also called a Wattle.
farmers have genetically altered the original perception of turkeys. the reason for this is that the "flap" of skin is edible for human consumption and apparently tastes very nice so the farmers can get even more money for selling that flap of skin
To keep food from going into the lungs.
A white skin flap on the side of the tongue is often an inflamed taste bud. The white flap may also be a canker sore.
It is called a dewlap. They use it to attract the opposite sex and intimadate other males as well as some predators.