Prion diseases are acquired through exposure to abnormal prion proteins that can enter the body through consumption of contaminated food, surgical procedures using contaminated instruments, or inheritance of mutated genes. Once inside the body, these abnormal prion proteins convert normal proteins into infectious forms, leading to disease.
Light enters the eye through the pupil, which adjusts its size to control the amount of light that enters. Once inside, the light passes through the lens, which focuses it onto the retina at the back of the eye. The retina contains photoreceptor cells that convert the light into electrical signals, which are then transmitted to the brain via the optic nerve for visual processing.
how can the path of a light ray be affected once it enters a nonzero angle with a greater index of refraction
Nerve cells typically do not continue to divide once they are fully formed. Unlike skin cells and epithelial cells that undergo continuous division for repair and maintenance, nerve cells have limited regenerative capacity. Once nerve cells are damaged or lost, they are not easily replaced, which contributes to the challenges of nerve regeneration in the body.
Nerve cells, also known as neurons, typically do not go through the cell cycle to divide and reproduce. They are terminally differentiated cells that do not undergo cell division once they have matured. This is why nerve cell damage or loss is often irreversible.
Prion diseases are acquired through exposure to abnormal prion proteins that can enter the body through consumption of contaminated food, surgical procedures using contaminated instruments, or inheritance of mutated genes. Once inside the body, these abnormal prion proteins convert normal proteins into infectious forms, leading to disease.
Pain is caused by the stimulation of nerve endings. When the nerve endings are stimulated, sodium enters the nerve ending, which causes an electrical signal to build up in the nerve. Once the electrical signal becomes big enough, it is able to travel to the brain, which then interprets this as pain. Benzocaine works as a chemical barrier, stopping the sodium from being able to enter the nerve ending.
No, nerve cells do not typically divide once they have fully developed.
When you get infected with HIV, the virus enters your blood and gets inside your cells that are floating around
No, once the optical nerve is severed it cannot be repaired thus optical nerve transplantation is not yet available. :-(
No, once the optical nerve is severed it cannot be repaired thus optical nerve transplantation is not yet available. :-(
A nerve grows back about a millimeter a week but will never be as good as it once was.
It enters the fallopian tubes
What is the process of food once it enters the body .
They are destroyed.
Disintegrants
They are destroyed.