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57 Cards in this Set
- Front
- Back
Umani |
Savory |
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Salty receptors |
Metal ions |
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Bitter receptors |
Alkaloids |
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Sour receptors |
Acids |
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Sweet receptors |
Saccharine and some amino acids |
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Gustatory hairs |
Long microvilli |
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The tongue is covered with projections called __? |
Papillae |
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Where are taste buds found? |
On the sides of papillae |
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Filiform papillae |
Sharp with no taste buds |
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Fungiform papillae |
Rounded with taste buds |
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Circumvallate papillae |
Large papillae with taste buds |
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Where are taste buds located ? |
Most are on the tongue, soft palate, and in cheeks |
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What houses the receptor organs ? |
Taste buds |
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Interpretation of smells is made in the what ? |
Cortex |
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What are transmitted to the olfactory nerve ? |
Impulses |
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Olfaction |
The sense of smell |
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Continued stimulation can lead to ? |
Adaptation |
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Where does the action potential starts ? |
In the cochlear nerve |
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Hair cells are bent by the ___ |
Membrane |
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Organ of corti |
Located within the cochlear |
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Receptors |
Hair cells on the basilar membrane |
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What stimulates the hair cells? |
Cupula |
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Viewing close objects can cause what ? |
Convergence |
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Convergence |
Eyes moving medially |
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What causes pupils to constrict through action of radial, circular, ciliary muscles |
Bright light |
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Optic tracts |
Contains fibers from the lateral side of the eye on the same side and the medial side of the opposite eye |
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Optic chlasma |
Fibers from the medial side of each eye cross over to the opposite side of the brain |
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Real images are ? |
Reversed from left to right, upside down, smaller than the object |
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Real image |
Image formed on the retina |
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Accommodation |
The lens must change shape to focus on closer objects |
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The eye is set for ? |
Distance vision (over 20ft away) |
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Ophthalmoscope |
Instrument used to illuminate the interior of the eyeball |
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Ophthalmoscope |
Can detect diabetes, arteriosclerosis, degeneration of the optic nerve and retina |
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Vitreous humor |
Gel-like substance posterior to the lens, prevents eye from collapsing, helps maintain intraocular pressure |
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Aqueous humor |
Watery fluid found between lens and cornea |
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Anterior |
Aqueous |
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Posterior |
Vitreous |
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Lens |
Biconvex crystal like structure |
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Cataracts |
Results when the lens becomes hard and opague with age |
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Neurons of the vision and retina |
Rods and cones |
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Optic disc |
Blind spot |
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Optic disc |
Where the optic nerve leaves the eyeball, cannot see images focused on the optic disc |
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Retina 2 layers |
Outer pigmented layer, inner neural layer |
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Photoreceptors |
Rods and cones |
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Iris |
Regulates amount of light entering the eye |
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Pupil |
Rounded opening of the eye |
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Ciliary body |
Smooth muscle attached to the lens |
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Choroid |
Blood-rich nutritive layer in the posterior of the eye |
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Choroid |
Pigment that prevents light from scattering through the eye |
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Cornea |
Transparent, central anterior portion, allows for light to pass through, repairs itself easily, the only human tissue that can be transplanted without rejection |
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Sclera |
White connective tissue layer, seen anteriorly as the “white part of the eye “ |
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Layers forming the wall of the eyeball |
Fibrous, vascular, sensory |
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Fibrous |
Outside layer |
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Vascular |
Middle layer |
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Sensory |
Inside layer |
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Tears |
Dilute salt solution |
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Extrinsic eye muscles |
Produce eye movements, are 6 muscles attached to the outer surface of the eye |