photophobia		one of the threadlike extensions of the cytoplasm of a neuron; dendrites branch into treelike processes and compose most of the receptive surface of a neuron
neuron		a common chronic neurological disorder that is characterized by recurrent unprovoked seizures
laminectomy		Extreme sensitivity to light
nystagmus		Spaces in the brain that are located between portions of the brain and filled with cerebrospinal fluid
Tentorium		the process occurring when some mechanism within a biological system detects and adjusts for changes within the system
Tetraplegia		An altered sensation often described as burning, tingling, or pin pricks
hemianopia		Rhythmic, oscillating motions of the eyes
infratentorial		series of membranous layers of connective tissue that protect the central nervous system (brain and spinal cord)
cerebellum		One of the membranes that sheathes the spinal cord and brain
dendrites		The trilobed structure of the brain, lying posterior to the pons and medulla oblongata and inferior to the occipital lobes of the cerebral hemispheres, responsible for the regulation and coordination of complex voluntary muscular movement and the maintenance of posture and balance
epinephrine		cold-blooded
duramater		a weak point in a blood vessel where the pressure of the blood causes the vessel wall to bulge outwards
dopamine		The cells within the body which make up the nervous system, specifically those along which information travels
acetylcholine		the surgical removal of a portion of an intervertebral disk
ventricles		The usually long process of a nerve fiber that generally conducts impulses away from the body of the nerve cell
aura		The largest portion of the brain, including practically all the parts within the skull except the medulla, pons, and cerebellum and now usually referring only to the parts derived from the telencephalon and including mainly the cerebral hemispheres that are joined at the bottom by the corpus callosum. It controls and integrates motor, sensory, and higher mental functions, such as thought, reason, emotion, and memory
cerebrum		defective vision or blindness in half of the visual field of one or both eyes
epilepsy		Also called adrenalin, a secretion of the adrenal glands (along with norepinephrine) that helps the liver release glucose and limits the release of insulin
autoregulation		surgical repair of a defect or deformity of the skull
cranioplasty		complete paralysis of the lower half of the body including both legs, usually caused by damage to the spinal cord
paraplegia		surgical removal of a portion of the cranium
aneurysm		surgical repair of a defect or deformity of the skull
meninges		A subjective sensation or motor phenomenon that precedes and indicates the onset of a neurological episode, such as a migraine or an epileptic seizure
paresthesia		A connection between nerve cells, by which nervous excitation is transferred from one cell to the other
synapses		a neurochemical made in the brain that is involved in many brain activities, including movement and emotion
diskectomy		beneath the tentorium of the cerebellum
Poikilothermia		A sudden attack, spasm, or convulsion
axon		A membranous cover or horizontal partition
craniectomy		paralysis of all four extremities; quadriplegia
craniotomy		a molecule released by neurons at the neuromuscular junction that causes muscle contraction
seizure		an operation in which the surgeon cuts through the covering of a vertebra to reach a herniated disk in order to remove it