Let's start learning about the nervous system

This packet starts off with some basic definitions. Below I've listed some that I thought might be hard to remember.

gemistocyte a hypertrophied astrocyte

gitter cell mononuclear phagocyte containing myelin debris

hydranencephaly large portion of cerebrum is missing and replaced by fluid-filled membranous sac. No identifiable cortex remains.

lissencephaly smooth-surfaced cerebrum (no gyral development). Usually cortex is thicker than normal (pachygyria).

myelitis inflammation of the spinal cord.

neuronophagia (process of neuronal phagocytosis) accumulation of mononuclear cells around/ at the site of a neuronal cell body undergoing dissolution/ has disappeared.

porencephaly cavities in the brain, usually the cerebrum.

satellitosis accumulation of glial cells (usually oligodendrocytes) around a neuronal cell body.

spina bifida failure of the vertebral arch to develop

spinal dysraphism abnormal spinal cord development with improper union between two contiguous structures.

syringiomyelia cavity in the spinal cord parenchyma, usually in the white matter.

Wallerian degeneration degenerative changes in an axon and its myelin distal to point of injury