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.Know More
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
According to the Chicago College of Medicine, eyes do continue to grow after birth. A newborn's eyes are about 75 percent the size they are going to be when fully grown.Full Answer >
A tongue that has been completely severed does not grow back at all on its own; however, a tongue that has received severe lacerations, if it receives proper treatment, has the ability to recover rapidly. The amount of time recovery takes depends on the extent of the injury. In at least one instance, a tongue severed in an accident was successfully reattached in a patient's mouth.Full Answer >
Human growth or maturity is prompted by human growth hormone, commonly referred to as HGH, a hormone secreted by the pituitary gland responsible for muscle and bone growth, fat metabolism and the regulation of body composition. Once HGH is secreted, it helps coordinate the various growth processes, such as turning cartilage into bone, one of the main processes responsible for human growth.Full Answer >
Fingernails grow from the root of the nail, pushing old cells out which flatten and harden, as new cells take their place. The flattened and hardened nail then slides along the nail bed, which is fed with minuscule blood vessels.Full Answer >