Myelinated neurons transmit electrical signals more quickly than the unmyelinated nerves in the body. Myelinated axons are present in sensory neurons and motor neurons, but not all sensory and motor ...

The CNS includes the brain and spinal cord, and the PNS is made up of all the body’s remaining nerves. The PNS can also be subdivided into smaller components: the somatic and autonomic nervous systems ...

The oculomotor system consists of interconnected regions throughout the central nervous system that interact to control various eye movements. It includes different brainstem nuclei, the superior ...

(A) The ventral nerve cord (VNC) of an earthworm is positioned on a series of transverse, single-ended electrodes to excite and monitor APs. Individual or two counter-propagating APs are generated by ...

Gluten neuropathy refers to damage that can occur to peripheral nerves in people with gluten sensitivity. Peripheral nerves are the nerves that travel from the spine and the brain to the other areas ...

Optic neuritis (ON) is an inflammation that damages your optic nerve. It can cause vision loss and pain when you move your eyes. As the inflammation goes away, your symptoms usually get better.

While the central nervous system is comprised of the brain and spinal cord, the peripheral nervous system is made up of all nerves branching off the spinal cord, extending to every part of the body.

THE optic and oculomotor nerves of Carcinus run from the brain into the last segment of the eyestalk assembly, where they innervate eye muscles, mechano-receptors and photoreceptors. The optic ...

Nerve pain refers to painful sensations around the nerves. Various treatment options are available, including anticonvulsants, certain antidepressants, mild opioids, and some topical treatments ...

Nervous system examination of the patient showed that his consciousness is clear but the speech is slightly vague, and the remaining cranial nerve examination proved negative. The muscle strength of ...

If you have seizures which can’t be controlled with epilepsy medicines, and you are not able to have epilepsy brain surgery, then vagus nerve stimulation (VNS) therapy may be an option for you. The ...

Medically reviewed by Johnstone M. Kim, MD Mydriasis occurs when the pupil remains dilated (widened) and doesn't respond to light changes in an environment. It can happen due to an injury, medications ...