Brady- Slow

Bradycardia- a slow heart rate ( below 60 beats per minute)

endo- inside, within

Example: Endocarditis- inflammation of the inner lining

epi- upon, over, on top

Epidcardium- the outer layer of the heart

hyper- excessive, above normal

Hyperlipidemia- elevated levels of lipids in the blood

hypo- under or below

Orthostatic hypotension- low blood pressure that occurs upon standing up 

peri- Around

Pericardium- the membranous sac that contains the heart

tachy- fast 

Tachycardia- a fast heart rate (over 100 beats per minute)

A- without

Aphasia- a condition characterized by the complete loss of the ability to speak or understand language.

an- without, not 

Anencephaly- a condition where a major portion of the brain, skull, and scalp is absent.

dys- difficult, painful, abnormal.

dysphasia- difficulty speaking

hemi- half

hemiparesis- weakness on one side of the body

in- not, inward

insomnia- inability to sleep

inter- between

interneuron- a neuron that transmits signals between other neurons.

pan- all, entire

panhypopituitarism- decreased function of all pituitary hormones, affecting the nervous system.

para- besides, abnormal

paraplegia- paralysis of the lower half of the body

poly- many

Polyneuropathy- damage or disease affecting multiple nerves.

post- after

Postictal- the state following a seizure

pre- before

Presynaptic- relating to the area before a synapse

sub- under, below

Subdural- located beneath the dura mater, a membrane surrounding the brain and spinal cord.

Hyper-excessive, above normal

hyperreflexia - exaggerated reflexes

intra- within, inside

intracranial- located or occurring within the skull