sense organs
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| Sensory receptors detect _______ and generate________ | stimuli, impulses
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| Bundles of fibers in the white matter of the spinal cord are ______ ________ | sensory tracts
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| ____________ respond to phusical movement and detect sound | Mechanoreceptors
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| ___________ are a type of mechanoreceptor in muscles and joints | Proprioceptors
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| A type of receptor that responds to temperature is ___________ | thermoreceptors
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| Nocietors detect _______ ________ and give sense of pain | tissue damage
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| This receptor detects light | photoreceptor
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| Name the five charactericts of sensations, | Type, projections, intensity, adaptation, contrast.
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| _________ becoming less aware of continuing stimulation | adaptation
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| Effect of a previous or simultaneous sensation on a current sensation is called _________ | contrast
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| _________ is determined by the number of receptors stimulated and the amound of stimulation in each | Intensity
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| Which sensation is "felt" in the cerebral cortex | projections
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| Two cavaties of the retina are _____cavity and _______ cavity | posterior, anterior
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| The anterior cavity is divided into _____ chambers | 2
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| _______ chamber of the ______ cavity lies between the iris and cornea | anterior, anterior
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| The chamber betweeen the iris and the lens is the ________ ________ | posterior chamber
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| The _______ _______is in the anterior cavity of the retina | aqueous humor
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| Binocular vision allows for ______ _______ | depth perception
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| Bending of the light rays passing through the eye is called ________ | refraction
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| The canal of Schlemm is also known as ______ _____ _______ | scleral venous sinus
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| Posterior cavity is located between the lense and retina and also called | vitreous chamber
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| The vitreous humor, also known as vitreous body, is made of a ________ substance | semisolid
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| What is the opening where the optic nerve exits the eye | optic disc
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| The "blind spot" has no | visual receptors
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| The ciliary body/muscle is a circular muscle that surrounds and connected to the lens by _________ | ligaments
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| Anterior to the lens is the _______ also known as the colored part of the eye | iris
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| ________, contraction of the radial fibers let in more light | Dilation
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| Another name for radial fibers is | sympathetic
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| Constriction is contraction of the _______ fibers that block light when too bright | circular
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| Give another name for the circular fivers of the pupil | parasympathetic
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| What part of the eye lines 2/3 of the posterior of the eye | retina
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| ______ of the retina detect wavelengths of visible light | rods
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| These are most abundant in the center of the retina | cones
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| _______ centralis are small depressions in the macula | Fovea
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| Less melanin appears as white. True/False | False. it appears as blue
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| Tears are released by the ________ ducts and blinking spreads them | lacrimal
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| Tears contain 20%,10%, or 1% NaCI and lysozyme | 1%
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| Name four of the six muscles of the eyeball | superior oblique, superior rectus, medial rectus, lateral rectus, inferior rectus, inferior oblique
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| The _____ and ______ oblique rotate the eyeball side to side. | superior, inferior
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| The ______, _______,_______,_______ rectus muscles move the eyeball up and down. | superior, medial, lateral, inferior
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| How many layers are in the eye | two
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| What is the thickest part of the eye | sclera/ white part
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| The white part of the eye is made of | fiberous connective tissue
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| Parts of the outer layer of the eye are | sclera, cornea
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| The chorid layer of the eyeball contains most of the _______ _______ | blood vessels
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| Vascular tunic is also known as the | middle layer of the eyeball
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| Another name for the Fiberous tunic of the eyeball is | outer layer
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| Superior and lateral to the eye with in the orbit lies the _______ _______ | lacrimal glands
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| The eyelids are controlled by _______ _______ | skeletal muscles
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| A thin membrane that lines the eyelid and covers the sclera is known as | conjunctiva
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| Which part of the inner ear is responsible for dynamic equilibrium | semicircular canals
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| _________ is controlled by the cerebellum and midbrain | equilibrium
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| Each of the three fluid filled semicircular canals is stimulated by different movements of the head. True/False | True
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| A bulb like area at the end of each canal is called _______ | ampulla
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| Name the two sense organs inside the vestibule of the ear | utricle and saccule
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| Inside each ampulla are sterocilia (hair cells) topped by the ________ | cupula
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| The cupula floats in the __________ that fills the semicircular canals | endolymph
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| Inside the inner ear is the _______ for hearing and the _______ for balance | cochlea, vestibule
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| The cochlea is a stirrup shaped structure for hearing. True/False | False. it is snail shaped
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| Parts of the outer include the ______ and _____ _____ | auricle, ear canal
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| The _______ _____ contains the ossicles and is drained by the eustachian tubes | middle ear
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| Three parts of the auditory ossicles are | malleus, incus, stapes
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| The stapes looks like a ______ it transfers and amplifies sound | stirrup
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| The auditory tubes extend from the ______ _____to the nasopharaynx | middle ear
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| Parts of the middle ear include: | eardrum, aduitory ossicles, auditory tubes, and otitis media
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| _______ results when chemicals come in contact with tastebuds | Gustation
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| Name the 4 types of papillae on the tongue are | vallate, foliate, filiform, fungiform
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| Taste buds are enhanced by _______ | smell
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| Olfactory receptors detect vaproized chemicals in the _____ ______ cavity | upper
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