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Final Exam
Sensory Organs
75
Anatomy
Undergraduate 2
12/09/2012

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Cards

Term
Accessory XI
Definition
shrugging the shoulders
Term
olfactory I
Definition
smelling coffee
Term
oculomotor III
Definition
raising the eyelids
Term
vagus X
Definition
slows the heart; increases the mobility of the GI tract
Term
facial VII
Definition
involved in smiling
Term
trigeminal V, hypoglossal XII
Definition
involved in chewing food
Term
vestibulocochlear VIII
Definition
Listening to music
Term
Vagus X
Definition
fatal if both are damaged
Term
glossopharyngeal IX
Definition
secretion of saliva
Term
Oculomotor III, trochlear IV, abducens VI
Definition
involoved in rolling the eyes (3 nerves)
Term
trigeminal V
Definition
feeling a toothache
Term
optic II
Definition
reading this worksheet
Term
olfactory I, optic II, vestibulocochlear VIII
Definition
purely sensory
Term
olfactory I
Definition
is damaged often in boxing or trauma to the base of the nose
Term
vagus X
Definition
the only nerve leaving the head and neck region
Term
facial VII
Definition
major motor nerve of facial expression
Term
Vestibulocochlear VIII
Definition
Seasickness
Term
Vagus X
Definition
primary PS nerve
Term
facial VII
Definition
tasting; anterior 2/3 of the tongue
Term
vagus, glossopharyngeal, oculomotor, facial
Definition
nerves with PS fibers
Term
oculomotor III
Definition
focusing the lens of the eye for accommodation
Term
trigeminal V
Definition
responsible for corneal reflex "blinking" in response to light touch of the eyeball
Term
vestibucochlear VIII
Definition
damage to this nerve causes loss of balance
Term
glossopharyngeal IX
Definition
regulates blood pressure and secretion of parotid gland
Term
accessory XI
Definition
is unique in that it has a spinal component
Term
hypoglossal XII
Definition
helps protrude the tongue
Term
oculomotor III
Definition
opens the eyelid (the eye)
Term
olfactory I
Definition
comes from the olfactory mucosa of the nose
Term
trigeminal V
Definition
main sensory nerve of the upper face (touch, temperature, pain)
Term
trochlear IV
Definition
the smallest nerve
Term
vagus X
Definition
the "wanderer"
Term
trigeminal V
Definition
the biggest nerve
Term
vagus X
Definition
most important mixed nerve
Term
vagus X
Definition
sensation of hunger and GI discomfort
Term
glossopharyngeal IX
Definition
tasting; posterior 1/3 of the tongue
Term
facial VII
Definition
damage to this nerve causes Bell palsy
Term
oculomotor III
Definition
constriction of eye pupil
Term
facial VII, glossopharyngeal IX, vagus X
Definition
mixed nerves
Term
facial VII
Definition
secretion of tears
Term
glossopharyngeal IX, vagus X, accessory XI, hypoglossal XII
Definition
cranial nerves involved in swallowing
Term
cornea
Definition
the clear outer part of the eye's focusing system located at the front of the eye
Term
eyelid
Definition
the skin covered structure that protects the front of the eye; limits light entering the ye; spreads tears over the cornea
Term
iris
Definition
the colored part of the eye
Term
lens
Definition
the clear part of the eye posterior to the iris that helps to focus light on the retina; allows the eye to focus on near objects
Term
macula lutea
Definition
the small, sensitive area of the retina that gives central vision; contains the fovea
Term
ciliary body
Definition
forms the aqueous humor
Term
optic nerve
Definition
the bundle of more than 1 million nerve fibers that carry visual messages from the retina to the brain
Term
pupil
Definition
the opening at the center of the iris. size can be adjusted to control the amount of light entering the eye
Term
retina
Definition
the light-sensitive tissue lining the back of the eyeball; sends electrical impulses to the brain
Term
sclera
Definition
the tough outer white coat of the eye
Term
vitreous body
Definition
the clear gel filling inside of the eye, helps reinforce the eyeball
Term
choroid
Definition
a layer of blood vessels feeding the retina with oxygen and nutrients
Term
suspensory ligaments
Definition
attaches the lens to the ciliary body
Term
aqueous humor
Definition
in the anterior segment, provides nutrients to the lens and the cornea
Term
blind spot
Definition
lacks photoreceptors
Term
cornea, aqueous humor, lens, vitrous body
Definition
4 optical components of the eye
Term
scleral venous sinus
Definition
drains the aqueous humor of the eye
Term
middle ear
Definition
collectively called the ossicles
Term
auditory tube
Definition
passage between the nasopharynx to the middle ear
Term
inner ear/ cochlea/ cochlear duct
Definition
contains the organ corti
Term
tympanic membrane
Definition
vibrates as sound waves hit it; transmits vibrations to the ossicles
Term
inner ear
Definition
contains receptors for the sense of equilibrium
Term
round window
Definition
acts as a pressure release valve for increased fluid pressure in scala tympani; bulges into tympanic cavity
Term
auricle and external auditory canal
Definition
two structures composing the outer ear
Term
outer ear
Definition
conducts air waves to the tympanic membrane
Term
ceruminous
Definition
glands; found in external auditory canal
Term
auditory tube
Definition
allows pressure in the middle ear to be equalized with the atmospheric pressure
Term
endolymph
Definition
fluid, bathes the organ of corti
Term
COCHLEA/COHLEAR DUCT/ORGAN OF CORTI
Definition
Structure of the inner ear, involved in hearing
Term
PERILYMPH
Definition
Fluid, bathes the membranous labyrinth
Term
OVAL WINDOW
Definition
Transmits the motions of the stapes to the fluid in scala vestibule
Term
SEMICIRCULAR DUCTS
Definition
Positioned in 3 planes
Term
VESTIBULE/SEMICIRCULAR DUCTS
Definition
Structures of the inner ear, NOT involved in hearing
Term
BASILAR MEMBRANE
Definition
Hair cells of organ of Corti rest on this membrane
Term
VESTIBULOCOCHLEAR/VIII
Definition
Carries auditory information to the brain
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