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Nervous System

nervous system

lacrimal glands located by the outer corner of the eye, produce lacrimal fluid (tears)
lacrimal sac upper expanded portion of the lacrimal duct
lens also called the crystalline connected to the choroid
malleus bone closest to the tympanic membrane, known as the hammer
medulla oblongata
meibomian glands small glands that lubricate the eye
meninges are three layers of membranes that surrond and protect the brain and spinal
microglia a neuroglia supportive cell
middle ear
motor nerves carry impulses from the brain to the appropriate body structure.
myelin a white fatty tissue that covers the axon
nasolacrimal duct fluid is carried away from the lacrimal ducts via
neuroglia the nerve cells that support the the nervous system
neurologist physician specialist
neruology the medical study of nerves
neuron transmit nerve impulses from the body to the brain and back to the body
neurosurgeon physician that practices surgery on nerves
occipital lobe
oligodendroglia a neuroglia supportive and connective cell
ophthalmologist physician specialist
opthalmology is the medidcal specialty related to the eye
optic disk located at the back of the eye, is the area where the nerve endings of the retina come together to form the optic nerve
optic nerve transmits sensory impulses for sight
optician is an allied health technician who is trained to fit prescription eyeglasses and contact lenses and also grinds lenses for eyeglasses
optometrist nonphysician eye specialist who has a degree in optometry
optometry degree
organ of Corti inner ear
ossiclces middle ear three small bones
otologist physician specialist of the ear
otology medical study of the ear
otorhinolaryngologist physician specialist of the ear, nose and throat
otorhinolaryngology medical specialty of the ears
oval window stape vibrate against the oval window, which seperates the middle ear from the inner ear
parietal lobe receives and interprets impulses from the sensory receptors
peripheral nervous system (PNS) cranial and spinal nerves
pia mater web like tissue with several strands that attach to the inner membrane layer
pinna cartilaginous flap that directs sound waves into the external auditory canal
posterior chamber area behind the lens
retina inner layer of the eye
rods nerve cells in the retina, responsible for vision in dim light and peripheral vision
sclera outer layer of the eye
semicircular canals inner ear part
sensory nerve carry impulses from the body to the brain
somatic nervous system (SNS) peripheral nervous system is responsible for voluntary movements and responses such as walking, talking and swimming
spinal cord central nervous system
spinal nerve 31 pairs are nerve known as the peripheral nervous system
stapes middle ear bone, known as the stirrup
sulci grooves in the cerebral cortex
sulcus a single groove in the cerebral cortex
suspensatory ligament the lens is connected to the choroid
synapse space between neurons or a neuron and an organ
temporal lobe is responsible for hearing and smell
terminal end fibers branching fibers that lead the impulse away from the axon.
tympanic membrane transmits soundwaves to the middle ear
uvea the choroid, iris and ciliary body are called this
vestibule inner ear
vitreous humor the posterior cavity is filled with a clear jelly-like substance, this gives your eyeball its shape, it is also necessary for sight.
acoustic nerve transmits impulses necessary for hearing and balance; also called the auditory nerve
afferent nerve carry impulses from the body to the brain
anaterior chamber area in front of the lens
aqueous humor
arachnoid membrane web like tissue of the meninges, middle layer
astrocyte a neuroglia that is supportive and conncective cells
audiologist specializes in evaluating hearing potential and hearing loss
audiology study, evaluation, and measurement to the hearing potential and loss
auricle cartilaginous flap that directs sound waves into the exteranal auditory canal
autonomic nervous system (ANS) is responsible for involuntary movements and responses such as hormone secretion
axon send impulses away from the body
brain central nervous system
brain stem
cauda equina lower end of the spinal cord and spinal nerve roots
cell body neuron consist of
central nervous system (CNS) brain and spinal cord
cerebral cortex outer layer of the cerebrum and is characterized by folds and grooves
cerebrospinal fluid (CSF) flows in and around the brain and spinal cord, CSF cushions the brain and spinal cord
cerumen protects and lubricates ear (earwax)
ceruminous glands prodeuce cerumen (ear wax)
chorid middle layer of the eye
cilia hairs that line the auditory canal, help direct sound waves through the canal
ciliaary body lens is connected to the choroid by
cochlea is a spiral or snail shaped structure that contains auditiory fluid and the organ of Corti
cones are responsible for vision in bright light, central vision and color visioin
conjunctiva is a mucous membrane that lines the outer surface of the eye and the inside of the eyelid
cornea transparent anterior portion of the sclera that covers the iris
corpus callosum
cranial nerves 12 pairs of these, are the peripheral nervous system
crystalline lens connected to the choroidby the ciliary
dendrite branchlike structures that receive impulses and send them to the cell body
dura mater outer layer of the meninges, tough white connective tissue just beneath the skull
efferent nerves carry impulses from the brain to the appropriate body structure
eustachian tube connects the middle ear to the pharynx
external auditory canal
external ear visible parts of the ear
eye socket bony cavity of the skull that houses and protects the eyeball
eyebrow prevent foreign matter from reaching the eyes
eyelash prevent foreign matter from reaching the eyes
eyelid prevent foreign matter from reaching the eyes
frontal lobe responsible for motor function
gyrus a single fold in the cerebral cortex
incus middle ear bone, known as the anvil,
inner ear hearing balnce and equilibrium
internal ear buried in the bony framework of the cranium.
iris gives eye their color, is a muscular ring that surronds the pupil
labyrinth inner ear, includes (9) vestibules
lacrimal duct drain lacrimal fluid away from the eye and into the nose
lacrimal fluid tears
Created by: dunningk