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60 Cards in this Set
- Front
- Back
superior rectus
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elevates eye
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inferior rectus
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depresses eye
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medial rectus
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moves eye medialy
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lateral rectus
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moves eys laterally
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superior obilque
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depresses eye and lateral rotes eye
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inferior oblique
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evaluates eye abd laterally rotates eye
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lacrimal gland produces
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tears that spread across the surface of the eye during blinking process
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tears acumulate pooling area called
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medial canthus
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oenings called superior lacriamal punctum,inferior lacrimal punctum which lead to the superior lacrimal caniculus and the inferior lacrimal caniculus from their they travel to the lacrimal sac to the
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nasolacrimal duct wich is why your nose runs when you cry
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eye is divided into three tunic sheaths
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fibrous tunic, vascular tunic, neural tunic
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fibrous tunic
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thick, though layer of connective tissue that consist of the sclera(white of eyeball)on th eposterior portion and becomes the transparent cornea on its anterior portion
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cornea
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cupshaped and filled with fliud called aqueous humor
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vascular tunic
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vascular drark brown choroid coat on the posterior portion, which becomes the ciliary body and the iris(colored portion of the eye) on it anterior portion
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lens of the eye is held in place by
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suspensory ligements
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when smooth muscle in the ciliary body contracts , it can change the shape if the lens of the shape allowing the eye to focus in
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near versus distant objects
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the iris covers the front of the lens in the center on the iris is a hole called
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pupil
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neural tunic
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is the retina and covers only the posterior portion of the eye
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thin layer containing photoreceptors
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cones and rods
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rods
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helps see in low light situations
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cones
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help us see colo and sharper,clear
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filling the posterior cavity of the eye is a jelly like substance called
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vitreous(maintains normal shape of eyeball)
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on the back of the retina is a samall disc called
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macula lutea(contains no rods/cones)
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at the center of the structure is a depression called the
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fovea centrailis
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on region of the retina that lacks photo receptors is called
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optic disk(blind spot)
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way in which to remeber the layers in the back of the eye Scared Cat Run
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-sclera
-choroid -retina |
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ear is divided into three regions
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-inner ear
-middle ear -external ear |
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external ear
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extends from ear to tympanic membrane
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auricle
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is made of elastic cartilage and directs sound waves into the external auditory meatus
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tympainic membrane(ear drum)
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cone shaped connective tissue vibrates when sound waves strike it
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middle ear
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air filled space that extends medial to tympanic membrane and up to the inner ear. it contains three ear ossicles, malleus,inus, and stapes
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the auditory or eustachian tube
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connects the middle ear to the nasopharynx
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this tube is shortand horizontal in childern and iteaiser for childeren it eaiser for bacteria to enter the middle
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nasopharynx
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inner ear
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is a bony complex of fluid filled chambers that contain recetors for hearing and equilibrium
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receptor for equilibrium are located
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semicircular canals
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receptors for hearing are located in the
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cochlea
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ear ossicles vibrate and transfer vibrations to
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oval window of the inner ear
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when a shock wave is sent through fluid filled chambers with in the cocchlea which eventually dissipate out throught the round window to the air in the
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typanic cavity
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this vibration stimulates hair cells in the
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organ of cori
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tympanic membrane
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looks like the cones on a stero speaker
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malleus looks like
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a hammer
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incus looks like an
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anvil
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stapes looks like a
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stirrup
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cochlea of the inner ear looks like a
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snail shell
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surface of the tounge is covered in many small epithelial called
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papillae
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there are three different types of papillae
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-filiform
-fungiform -circumvallate |
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the filliform papillae are located on the
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tip of the tounge
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fungiform papillae are located
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posterior to the filiform
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circumvallate papillae are found
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in a "V" shaped strip along the posterior margin of the tounge
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taste buds are located along the sides of the
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papilla
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each type of papilla contains a different number of taste buds,in total an adult has about____ but this nember decreases with age
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10,000 taste buds
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a taste bud is composted of two cells
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-gustatory(taste)cells
-supporting cells |
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microvilli(taste hairs)
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gustatory cells are modified neurons
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filiform papilla looks like
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a flame
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fungiform(mushroom) papilla
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is dome shaped like a mushroom cap
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olfaction
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sense of smell
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olfactory receptor cells
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cillia are extentions of modified neurons
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once the aro matic molecule binds to the receptor , it triggers a nervous impulse in the olfactory receptor cell, this impulse travles along the cell it passes through the
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olfactory formen in the crubriform plate of the ethmoid
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when the scent reaches the ______ wich is the teminal portion of the first cranial nerve
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olfactory bulb
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when synapse connections are made with other neurons the impulse transferred to these neurons continues down the
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olfactor tract
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impulses are carried to the approiated area of the brain
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frontal and temporal lobes of the cerebrum
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