Toenails do grow back, but how well toenails grow back depends upon where they were broken. Nail growth occurs in the lunula, the white half-moon shape at the bottom of the nail.Continue Reading
If the lunula is damaged, a toenail still grows back, but nail growth is permanently changed. These changes can include the nail having a bumpy texture or the nail becoming much thicker.
Nail loss can be due to a trauma or a fungal infection, which can cause the nail to become detached from the nail bed. A detached toenail appears white in the area that has separated from the nail bed.Learn more about Human Anatomy
The uvula is the dangling appendage visible at the back of the throat and the epiglottis is a cartilage flap within the throat. Situated behind the tongue and before the larynx, the usually upright epiglottis folds down to block the windpipe when a person swallows. This prevents swallowed items, such as food and drinks, from entering the lungs, directing them instead to the stomach.Full Answer >
Although there is some uncertainly regarding the function of the uvula, experts believe that this small flap-like structure in the back of the throat plays important roles in speech and swallowing. The uvula contains glands that secrete a large amount of saliva, which aids in digestion, keeps the mouth moist and prevents airborne pathogens from entering the respiratory canal.Full Answer >
The palatine uvula is a small, bell-shaped organ that hangs down in the back of the mouth and blocks the interior nasal passages while swallowing. The uvula has other functions, such as secreting a small amount of saliva, but preventing nasal regurgitation is one of its most important roles.Full Answer >
The epiglottis, a flap composed of elastic cartilage located at the back of the throat, functions in both the respiratory and digestive systems of the body. It is open most of the time to allow air into the trachea, but it closes to prevent food from entering.Full Answer >