Unit 6 Full Word List 2024 Flashcards
acoustic
pertaining to hearing
aerotitis
air in the middle ear
afferent
traveling towards a structure
agnosia
not knowing
akinetopsia
motion-blindness
amblyopia
disease in which one eye’s input is ignored by the brain
ampulla
round flask; structure in the vestibular system which resembles a flask
amyotrophic
pertaining to muscle tissue wasting
anastomosis
“backwards mouth”; two openings coming together to form one
anesthesia
lack of sensation (usually, pain)
anesthesiologist
physician who administers anesthesia
aneurysm
ballooning of a blood vessel
aniridia
disease marked by the absence of an iris
anorexia
disease marked by a lack of desire (usually, for food)
anosmia
disease marked by an absence of the ability to smell
anticonvulsant
drug which stops seizure activity
antidepressant
drug which regulates mood
antipsychotic
drug which reverses symptoms of psychosis (a loss of contact with reality)
anxiolytic
drug which “breaks down” or reduces anxiety
apathy
lack of feeling
aphakia
absence of the lens
aphasia
absence of the power of speech (also, written language)
aponeurosis
sheath of connective tissue joining muscle and bones
arachnoid
one of the meninges; layer covering the brain that resembles a wet spider web
arteriosclerosis
hardening of the arteries
asthenopia
eye strain or eye fatigue
astigmatism
defect in the optical properties of the eye
atherosclerosis
buildup of plaque in the arteries
audiogram
graphical representation of a patient’s hearing
audiologist
clinician who studies hearing
audiometry
measurement of a patient’s hearing
auditory
pertaining to hearing
aural
pertaining to hearing
autism
alternative wiring of the brain resulting in characteristic behaviors and symptoms
autonomic
pertaining to body systems not under control of the conscious mind
axodendritic
a contact between an axon and a neuronal dendrite
axon
the part of a nerve cell responsible for its output
axosecretory
release of chemicals from an axon to the blood
axosomatic
a contact between an axon and neuronal cell body
basilar
running along the base of the brain (the name of an artery which does this)
binocular
using both eyes to perceive the visual world
bipolar
a neuron with two major extensions from the cell body
blepharedema
swelling of the eyelid
blepharitis
inflammation of the eyelid
blepharoconjunctivitis
inflammation of the eyelid and mucous membranes of the eye
blepharoplasty
surgical revision of the eyelid
blepharoplegia
paralysis of the eyelid
blepharoptosis
drooping of the eyelid
blepharopyorrhea
flow of pus from the eyelid
blepharospasm
involuntary contraction of the eyelid
blepharotomy
cutting into the eyelid
brain
the largest part of the central nervous system
bulimia
eating disorder characterized by the binge-purge-starve syndrome
cataract
cloudiness in the lens of the eye
catatonia
disease characterized by a lack of awareness
caudate
a structure in the brain which resembles a tail (Latin cauda)
cephalalgia
pain in the head
cephalodynia
pain in the head
cerebellar
pertaining to the part of the brain under the cerebrum
cerebellitis
inflammation of the cerebellum
cerebellum
part of the brain under the cerebrum and attached to the brainstem
cerebral
pertaining to the cerebrum
cerebromeningitis
inflammation of the brain and the membranes that cover it
cerebropathy
disease of the brain
cerebrospinal
pertaining to the brain and spinal cord
cerebrotomy
cutting into the brain
cerebrovascular
pertaining to the blood vessels of the brain
cerebrum
the large, wrinkled part of the brain; right and left hemispheres
cerumen
ear wax
ceruminolysis
process of breaking down ear wax
ceruminolytic
substance which breaks down ear wax
ceruminoma
tumor in the glands which produce ear wax
ceruminosis
condition of excessive ear wax
chemoreceptor
nerve cell which detects the presence of specific chemicals
choroid
a tissue resembling the chorionic membrane of the embryo; there is a choroid of the eye and a choroid plexus lining the ventricles of the brain
clonus
involuntary, rhythmic muscle contractions
cochlear
pertaining to the hearing apparatus of the inner ear (Latin “snail”, because of its anatomical resemblance to a snail)
cochleitis
inflammation of the cochlea
conductive
arising from a defect in the structures which bring sound to the inner ear
conjunctiva
mucous membrane of the eye
conjunctivitis
inflammation of the mucous membrane of the eye
convulsion
sudden, violent, involuntary contraction of muscle
cornea
the clear window covering the iris and pupil
corticospinal
nerve cell pathway connecting the cerebral cortex and the spinal cord
craniosclerosis
hardening of the skull
craniosynostosis
premature fusion and hardening of the bones of a child’s skull
cyclokeratitis
inflammation of the cornea and ciliary body of the eye
cycloplegia
paralysis of the ciliary body of the eye
cyclotomy
cutting into the ciliary body of the eye
dacryoadenalgia
pain in the lacrimal gland (the gland that makes tears to lubricate the eye)
dacryoadenectomy
removal of a lacrimal gland
dacryoadenitis
inflammation of a lacrimal gland
dacryocystalgia
pain in the nasolacrimal sac (which stores tears to lubricate the eye)
dacryocystectomy
surgical removal of the nasolacrimal sac
dacryocystitis
inflammation of the nasolacrimal sac
dacryocystorhinostomy
surgery to enlarge the opening of the nasolacrimal sac
dacryocystotomy
cutting into the nasolacrimal sac
dacryohemorrhea
blood mixed with tears
dacryolith
stone in the lacrimal glands
dacryolithiasis
condition of stones in the lacrimal glands
dacryopyorrhea
flow of pus from the lacrimal glands
dacryorrhea
excessive flow of tears from the lacrimal glands
dacryostenosis
blockage of tears from the lacrimal glands
decrement
slow, steady decrease in size
decussation
crossing
delirium
confusion and disorientation
dementia
lack of orientation to person, place, or time, often with memory loss
depolarization
an accumulation of positive charges inside a nerve cell
dermatome
region on the surface of the body which sends information along a single spinal nerve
diencephalon
region of the brain between the cerebrum and the brainstem; thalamus and associated structures
diplopia
double vision
dopamine
chemical signaling molecule of the brain
dura
one of the meninges; layer covering the brain made up of tough connective tissue
duritis
inflammation of the dura, one of the coverings of the brain
dysesthesia
abnormal sensation
dyslexia
disruption in the ability to read
dysphasia
disruption in the ability to speak
dysphoria
abnormal sensation of dread or unease
echoencephalography
the use of ultrasound to image the brain
ectropion
turning of the eyelid away from the eyeball
efferent
traveling away from a structure
electroencephalography
the use of electrical activity to image the brain
electrophysiology
the study of electrical activity in the brain or in brain cells
embolism
obstruction of an artery by a clot or air bubble
encephalitis
inflammation of the brain
encephalocele
herniation of the brain
encephalogram
image or trace of the electrical activity of the brain
encephalomyelitis
inflammation of the brain and spinal cord
encephalomyeloneuropathy
a disease of the brain, spinal cord, and nerves
encephalopathy
a disease of the brain
encephalopyosis
condition of pus in the brain
endarterectomy
removal of the inner lining of an artery along with a clot or plaque
endolymph
fluid of the inner ear
endoneurium
innermost connective tissue layer of a nerve
endophthalmitis
inflammation of the inside of the eye
endovascular
pertaining to the inner lining of a blood vessel
entropion
turning of the eyelid toward the eyeball
enucleation
removal of the eyeball
ependymal
pertaining to cells lining the ventricles (fluid-filled chambers of the brain)
epidural
pertaining to the space outside the dura, one of the coverings of the brain
epilepsy
disease characterized by the sudden onset of seizures
epineurium
outermost connective tissue of a nerve
esotropia
eye misalignment where both eyes turn inward
euphoria
sensation of well-being or happiness
exophthalmus
protrusion of the eyes out of the head
exotropia
eye misalignment where both eyes turn outward
externa
outermost
exteroceptor
nerve cell which detects the presence of stimuli outside the body
extraocular
outside of the eye, especially referring to the muscles which move the eye
fascicle
bundle of nerve axons
frontal
bone at the front of the skull; lobe of the brain in the front
ganglioma
tumor of a ganglion
ganglion
a collection of nerve cells outside the central nervous system
ganglionitis
inflammation of a ganglion
glaucoma
abnormal increase in pressure within the eye
glossopharyngeal
pertaining to the tongue and oral cavity
gustation
the sensation of taste
gyrus
elevated bump on the surface of the cerebrum
hematoma
mass of blood
hemianopsia
abnormal visual perception, “half not seeing”
hemiparesis
muscle weakness affecting half of the body (e.g. right upper and lower extremity)
hemiplegia
paralysis affecting half of the body (e.g. right upper and lower extremity)
hemorrhagic
abnormal blood flow
homunculus
map of the body surface as represented in the brain (Latin “little man”)
hydrocephalus
abnormal accumulation of cerebrospinal fluid
hyperacusis
abnormally increased ability to hear
hyperesthesia
abnormally increased sensation in skin
hyperopia
ability to see at a distance but not close up
hyperpolarization
an accumulation of negative charges inside a nerve cell
hypnotic
drug causing sleepiness
hypoacusis
abnormally reduced ability to hear
hypoglossal
underneath the tongue
ictus
seizure
idiopathic
a condition with no obvious cause
insomnia
inability to sleep
insula
a part of the cerebral cortex not visible from the outside of the brain (Latin, “island”)
interictal
the time between seizures
interneuron
a nerve cell that is neither sensory nor motor
interoceptor
nerve cell which detects the presence of stimuli inside the body
intracerebral
within the brain
intraocular
within the eyes
intravitreal
within the clear, jelly-like substance which gives the eyeball its shape
iridalgia
pain in the iris
iridectomy
surgical removal of the iris
iridemia
blood surrounding the iris
iridocyclectomy
surgical removal of the iris and ciliary body
iridocyclitis
inflammation of the iris and ciliary body
iridokeratitis
inflammation of the iris and cornea
iridopathy
disease of the iris
iridotomy
cutting into the iris
iris
the colored part of the eye which defines the pupil
iritis
inflammation of the iris
ischemic
pertaining to a lack of blood flow
keratalgia
pain in the cornea
keratitis
inflammation of the cornea
keratomalacia
softening of the cornea
keratopathy
disease of the cornea
keratoplasty
surgical revision of the cornea
keratotomy
cutting into the cornea
labyrinthectomy
surgical removal of the vestibular (balance) apparatus of the inner ear
labyrinthitis
inflammation of the labyrinth
labyrinthotomy
cutting into the labyrinth
lacrimation
the process of forming tears and crying
ligand
chemical which binds to a cell surface receptor
lobe
major division of the cerebrum
lobectomy
surgical removal of a lobe of the brain
lobotomy
cutting into a lobe of the brain
macrocephaly
abnormally large head
mechanoreceptor
nerve cell which detects the presence of movement, pressure, or other mechanical stimuli
medulla
the core of a multilayered organ (e.g. the brain)
meninges
coverings of the brain
meningioma
tumor of the coverings of the brain
meningitis
inflammation of the coverings of the brain
meningocele
hernation of the coverings of the brain
meningoencephalitis
inflammation of the brain and its coverings
meningopathy
disease of the coverings of the brain
microcephaly
abnormally small head
microtia
abnormally small ears
midbrain
part of the brainstem between the thalamus and pons
miosis
condition of a constricted (small) pupil
miotic
drug which causes miosis
monoparesis
weakness in a single extremity
monoplegia
paralysis of a single extremity
monosynaptic
characterized by a single contact between nerve cells
multipolar
a neuron with many major extensions from the cell body
mydriasis
condition of a dilated (large) pupil
mydriatic
drug which causes mydriasis
myelitis
inflammation of the spinal cord
myelocele
hernation of the spinal cord
myelogram
image of the spinal cord
myelomalacia
softening of the spinal cord
myelomeningocele
herniation of the spinal cord and its coverings
myelopathy
disease of the spinal cord
myopia
ability to see close up but not at a distance
myotatic
pertaining to muscle stretching
myringectomy
surgical removal of the eardrum
myringitis
inflammation of the eardrum
myringodermatitis
inflammation of the eardrum and the adjacent skin of the ear canal
myringomycosis
fungal infection of the eardrum
myringoplasty
surgical revision of the eardrum
myringotomy
cutting into the eardrum
narcolepsy
condition of uncontrollable, sudden sleepiness
nasolacrimal
pertaining to the lacrimal (tear-producing) structures and the nose
neuralgia
pain in the nerves
neurasthenia
weakness or lack of energy in the nervous system
neurectomy
surgical removal of a nerve
neuritis
inflammation of a nerve
neuroarthropathy
loss of nerve sensation that leads to destruction of a joint
neurocysticercosis
“brain worm”; the larval stage of a parasitic worm found in the brain
neurodynia
pain in the nerves
neuroencephalomyelopathy
disease of the nerves, brain, and spinal cord
neurogenic
arising from the nervous system
neuroglycopenia
condition of low sugar (glucose) levels in the brain
neurolysis
breakdown of nervous system tissue
neuroma
tumor derived from the nervous system
neuron
anatomical unit of the nervous system
neuropathy
disease of the nervous system
neuropharmacology
study of the effect of drugs on the nervous system
neurophysiology
study of the (usually electrical) function of the nervous system
neuroplasty
surgical alteration of the nerves
neurorrhaphy
surgical repair of a nerve
neurosclerosis
abnormal hardening of the nerves
neurosis
abnormal change in the nervous system
neurosurgery
using surgical techniques to revise or repair the nervous system
neurotomy
cutting into a nerve
neurotransmitter
chemical which carries a signal from one neuron to another neuron, or to a muscle cell
nociceptor
nerve cell which detects the presence of damage
nystagmus
eye movements that alternate between a rapid track to one side and a slow track to the other
occipital
bone at the back of the skull; lobe of the brain at the back
oculomycosis
fungal infection of the eye
oculopathy
disease of the eye
oculoplasty
surgical revision of the eye
ophthalmalgia
pain in the eye
ophthalmic
pertaining to the eye
ophthalmitis
inflammation of the eye
ophthalmologist
clinician who studies the eye
ophthalmomyitis
inflammation of the extraocular muscles
ophthalmopathy
disease of the eye
ophthalmoplegia
paralysis of the eye
ophthalmoscope
instrument for observing the eye
optic
pertaining to vision
optokinetic
pertaining to movement of the visual field
optometrist
clinician who measures the optical properties of the eye
optomyometer
instrument for measuring the strength of eye muscles
osmoreceptor
nerve cell which detects the strength of chemicals in the blood
osteoacusis
sound conduction via bone
otalgia
pain in the ear
otitis
inflammation of the ear
otodynia
pain in the ear
otolaryngologist
physician who studies the ear and throat
otoliths
microscopic stones in the ear that help detect head tilt
otomycosis
fungal infection of the ear
otoneurologist
physician who studies the ear and brain
otoplasty
surgical modification of the ear
otopyorrhea
flow of pus from the ear
otorhinolaryngologist
physician who studies the ear, nose, and throat
otorrhea
flow of liquid from the ear
otosclerosis
hardening of the bones of the middle ear
otoscope
instrument for observing the ear
otosteal
pertaining to the bones of the middle ear
ototoxic
drug that destroys the nerve cells of the ear
papilledema
swelling of the optic nerve, visible through an ophthalmoscope
paraesthesia
pins-and-needles sensation in the skin caused by nerve damage
paralysis
inability to move
parasympathetic
pertaining to the division of the autonomic nervous system that maintains body functions at rest
paresis
weakness
parietal
bone on the side of the skull; lobe of the brain on the side
perilymph
fluid of the inner ear
perineurium
connective tissue layer of a nerve
phacoemulsification
surgical procedure that involves breaking apart the lens of the eye
phacomalacia
softening of the lens
phacosclerosis
hardening of the lens
phacoscope
instrument for observing the lens
phakitis
inflammation of the lens
phonasthenia
weakness or lack of energy in the voice
photon
particle-wave of light energy
photophobia
inability to tolerate bright light (literally, “fear of light”)
photopic
pertaining to bright light conditions
photoreceptor
nerve cell which detects photons (particle-waves of light energy)
plexus
nerves which come together, mix, and separate
poliomyelitis
viral disease of the nervous system
polyneuritis
inflammation of several or many nerves
polyneuropathy
disease of several or many nerves
postcentral
behind the central sulcus
postganglionic
referring to nerve axons that are efferent to the autonomic ganglia
postictal
after a seizure
postsynaptic
after a contact between nerve cells (i.e. the neuron receiving the information)
precentral
in front of the central sulcus
prefrontal
the rostral part of the frontal cortex (“the front of the front”)
preganglionic
referring to nerve axons that are afferent to the autonomic ganglia
preictal
before a seizure
premotor
area of cortex that calculates, but does not execute, a motor program
presbycusis
elder hearing
presbyopia
elder vision
presynaptic
before a contact between nerve cells (i.e. the neuron sending the information)
propagate
spreading of a nerve signal
proprioceptor
nerve cell which detects the position of the body in space
prosopagnosia
inability to recognize faces
pseudesthesia
experiencing “false” feelings; feelings not caused by a stimulus
psychiatrist
physician who studies the mind
psychiatry
branch of medicine involved in the study of the mind
psychogenic
arising from the mind
psychologist
clinician who studies the mind
psychology
science of the mind
psychopathy
disease of the mind
psychopharmacology
study of drugs which affect the mind
psychosis
disease of the mind, usually one which involves a disconnection from reality
psychosomatic
pertaining to the connection between mind and body
psychotropic
a drug which acts on the mind
quadriplegia
paralysis of all four extremities
refractory
resistant to change
repolarization
restoration of the normal distribution of negative charges inside a nerve cell
retina
photosensitive nerve tissue lining the inside back of the eye
retinal
pertaining to the retina
retinitis
inflammation of the retina
retinopathy
disease of the retina
retinopexy
surgical fixation of the retina
retinoscope
instrument for observing the retina
retinosis
condition of the retina
saccule
small sac; structure in the vestibular system which resembles a sack
sciatica
inflammation of the major nerve supplying the lower extremity
sclera
white of the eye (i.e. “hard part” of the eye)
sclerectasia
bulging and thinning of the sclera
scleritis
inflammation of the sclera
scleromalacia
softening of the sclera
sclerotomy
cutting into the sclera
scotoma
a “hole” in the visual field (literally, “dark tumor”)
scotopic
pertaining to dim light conditions
segmental
broken into segments; a way of describing the pattern of nerve innervation on the body surface
sensorineural
pertaining to sensation and how it is processed by the brain
somnambulism
sleep-walking
somnography
measurement of a patient’s sleep
stimulus
environmental energy that causes a response in the nervous system
strabismus
condition where the eyes don’t look in the same direction
subarachnoid
between the brain surface and the arachnoid membrane
subdural
between the arachnoid membrane and the dura mater
sulcus
groove on the surface of the cerebrum
sympathetic
pertaining to the division of the autonomic nervous system that maintains body functions needed for escape or fighting
syncope
fainting
synesthesia
mixing up two or more senses (e.g. perceiving colors and sounds at the same time)
tastant
chemical which produces a taste sensation
temporal
bone on the side of the skull; lobe of the brain on the side
thermoreceptor
nerve cell which detects temperature
thromboembolism
loss of blood supply due to a clot which dislodges from its source and lodges in a distant location
thromboembolus
clot which becomes dislodged, blocking the blood supply at a distant location
thrombolytic
drug which breaks apart a blood clot
thrombosis
condition of clotting
tinnitus
ringing in the ears
transcranial
across the skull
transduction
the process of turning one kind of signal into another
transient
temporary; briefly passing
trigeminal
fifth cranial nerve, mostly carrying information from the face to the brain
tympanic
pertaining to the eardrum
tympanocentesis
puncture of the eardrum
tympanometry
process of measuring the eardrum
tympanoplasty
surgical alteration of the eardrum
tympanosclerosis
hardening of the eardrum
tympanostomy
creating a hole (“mouth”) in the eardrum
unipolar
a neuron with one major extension from the cell body
utricle
bag-like structure in the vestibular system
varicosity
dilation or enlargement of a part (e.g. a nerve axon)
vertigo
sensation of spinning
vestibular
the organ of balance; part of the inner ear
vestibulitis
inflammation of the vestibular apparatus
vestibulocochlear
pertaining to the inner ear (balance & hearing apparatuses)
vestibulotomy
cutting into the vestibular apparatus
vitrectomy
surgical removal of the vitreous
vitreous
the clear, jelly-like material that gives the eyeball its shape
xerophthalmia
dry eye