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37 Cards in this Set
- Front
- Back
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Lacrimal gland
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secrets tears. lateral superior of the eye
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Lacrimal Sac
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tube in naval cavity. tears drain into
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3 layers of the wall of the eye
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fibrous tunic
vascular tunic neural tunic |
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Fibrous Tunic
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external layer of the eye wall.
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Sclera
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white of the eye. part of the fibrous tunic
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cornea
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clear, part of the fibrous tunic. a vascular. no blood. transparent. has lots of nerves. continuous with the sclera
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choroid
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middle layer. highly vascular. lots of blood vessels.
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Ciliary body
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Part of vascular tunic. suspensory ligaments connects to the lens. Allows to change lens shape.
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Lens
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Dense fibrous elastic capsule. filled with crystalline. a protein.
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Iris
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visible colored disk. controls pupil size. . has two muscles.
dilator pupillae and sphincter pupillae lets in certain amount of light |
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Pupil
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Hole. another hole in the head
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retina
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in neural tunic. rods and cones. neural receptors.
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Ora serrata.
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jagged margin between the photosensitive posterior region of the retina. usually black absorbing extra light
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Anterior chamber of the eye
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part of anterior cavity. contains aqueous humor a CSF like substance.
between the iris and cornea |
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Posterior chamber of the eye
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contains aqueous humor. between the retina and lens.
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MACULA LUTEA
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Yellow ring at the back of the eye. has no blood vessels over the cones. it's were you vision is focused on directly.
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FOVEA CENTRALIS
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center of your vision. middle of macula lutea
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Optic Disk
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Blind spot. cn2
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optic chiasm
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is the part of the brain where the optic nerves (CN II) partially cross
The optic chiasm is located at the bottom of the brain immediately below the hypothalamus |
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Three parts of the ear.
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1. Outter naka oracle or pinna
2. Inner 3. middle |
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AURICLE
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elastic cartlige. round part of outer ear.
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EXTERNAL ACOUSTIC MEATUS (CANAL)
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Goes all the way to the Tympanic membrane. Lined with cerominous glands
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TYMPANIC MEMBRANE
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Part of the ear that vibrates border of the outer and middle ear.
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MALLEUS
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The hammer
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INCUS
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Anvil
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STAPES
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Hammer hits the anvil. moving the stapes hitting the oval window.
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PHARYNGOTYMPANIC TUBE (AUDITORY OR EUSTACHIAN TUBE)
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long tube for drainage. allows for equalizing the pressure. makes ears pop
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COCHLEA
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Auditory portion of the inner ear. Transduce physical vibrations into electrical pulses.
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COCHLEAR DUCT
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is an endolymph filled cavity inside the cochlea,
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SEMICIRCULAR CANALS
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three half-circular, interconnected tubes located inside each ear
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VESTIBULE
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central part of the labyrinth, as used in the vestibular system
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OVAL WINDOW
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s a membrane-covered opening which leads from the middle ear to the vestibule of the inner ear.
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VESTIBULAR NERVE
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one of the two branches of the Vestibulocochlear nerve.
. It receives positional information. |
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FACIAL NERVE
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cn7
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Vestibulocochlear NERVE
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Where the cochlear nerve and vestibular nerve come together.
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COCHLEAR NERVE
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nerve in the head that carries signals from the cochlea
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round window.
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exit for pressure waves.
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