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27 Cards in this Set
- Front
- Back
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The Special Sense |
Olfaction, Gustation, Vision, Equilibrium, Hearing |
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Olfaction |
Smell |
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Gustation |
Tasting |
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Vision |
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Equilibrium |
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Hearing |
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Accessory Structure |
-Eyebrows -Eyelids -Eyelashes -Lacrimal Gland -Nasal Lacrimal Duct |
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Eyebrows |
Sweat Bands |
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Eyelids |
Protect the eye from foreign objects and lubricates eyeball |
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Eyelash |
Protect eye from particles |
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Lacrimal Gland |
Tears produces |
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Nasal Lacrimal Duct |
where excess tears drain |
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External Structures of Eye |
-conjuntiva -Lacrimal Apparatus |
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Conjuntiva |
-A mucus membrane lining inside of the eyelid -Forms conjuctival sac between eye and eyelid |
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Conjunctivitis |
-Inflammation of conjunctival sac -Cornea is behind conjunctiva |
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Inner Neural Tunic |
Retina (covers back of eyeball) |
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Cornea |
light passes through to get into the eyeball |
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Lacrimal Appratus |
secretes lysozyme tears form then collect lacrimal lake then drains to nasal cavity |
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3 Layers of the Eye |
1. Outer Fibrous tunic 2. Middle Vascular Tunic 3. Inner Neural Tunic |
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Outer Fibrous Tunic |
-very thick layer -Sclera/ cornea |
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Middle Vascular Tunic |
-Blood flow -Choroid ciliary body, iris (eye color) |
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Cavities of Eye |
-large posterior cavity -smaller anterior cavity |
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Smaller Anterior Cavity |
-Anterior chamber: extends from cornea to iris -Posterior chamber: between iris, ciliary body, & lens |
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Iris |
-control light coming in *Pupillary constrictor muscle: constricts pupil -makes small: increased light *Pupillary dilator muscles (dilate pupil) pupil gets large: less light |
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Ciliary Body |
Pull or relax lens as you focus -contains muscle attaching to suspensory ligaments |
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Choroid |
Vascular Tunic: supply oxygen/nutrients to the retina |
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Neural Tunic (retina) |
1. Outer pigmented part: absorbs light ---> BOUNCE 2. Inner neural part: Contains visual receptors and associated neurons |
