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CHAPTER 15 SPECIAL SENSES

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eyebrows

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Terms in this set (108)

shade and prevent sweat from entering the eyes

hair follicle receptors trigger reflex for blinking

eyelids (palpebrae)

protect eye anteriorly

transparent mucus membrane that lines eyelids at palpebral conjunctiva

bulbar conjunctiva

covers white of eye and blood vessels underneath

conjunctival sac

space between palpebrae and bulbar conjunctiva that lubricates closed eyes

inflammation of the conjunctiva

conjunctival infection caused by bacteria or virus

lacrimal apparatus

lacrimal gland and ducts that drain lacrimal secretion into nasal cavity

produces lacrimal secretion or dilute saline solution that enters conjunctival sac via excretory ducts

lacrimal fluid contains

mucus antibodies lysozyme (enzyme destroys bacteria and cleanses eye)

nasal inflammation due to lacrimal mucosa swelling and watery eyes due to duct constriction

extrinsic eye muscles

superior, inferior, medial, lateral, superior oblique, inferior oblique

three tunics of the eye

fibrous, vascular (uvea), sensory (retina)

outermost layer with dense avascular ct has sclera and cornea