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53 Cards in this Set
- Front
- Back
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Auricle (pinna) |
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External auditory canal |
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Tympanic membrane |
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Malleus |
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Incus |
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Stapes |
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Round window |
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Pharyngotympanic tube |
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Semicircular canals |
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Vestibule |
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Cochlea |
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Vestibulocochlear nerve (Cranial nerve VIII) |
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Which part of the ear funnels sound waves into the ex. auditory canal? |
Auricle |
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Which part of the ear transmits sound waves to the tympanic membrane? |
External auditory canal |
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Which part of the ear transmits vibrations to the auditory ossicles? |
Tympanic membrane |
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Is the tympanic membrane part of the external or middle ear? |
External |
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Three small bones that amplify and conduct sound |
Auditory ossicles |
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Membranous opening connected to the stapes |
Oval window |
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Membranous opening that relieves pressure in cochlea |
Round window |
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Passage that connects the middle ear with the back of the throat |
Pharyngotympanic tube |
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Fluid found in the membranous labyrinth |
Endolymph |
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Fluid found between the mem. and bony labyrinths |
Perilymph |
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Contains the ampulla which functions in dynamic equilibrium |
Semicircular canals |
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Contains otoliths which function in static equilibrium |
Vestibule |
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Houses the organ of Corti which contain "hair" cells, the sensory receptors for hearing |
Cochlea |
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Lacrimal gland Creates tears |
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Lacrimal sac |
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Nasolacrimal duct Drains tears into nasal cavity |
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Which membrane lines eyelid and covers anterior surface of the eye? |
Conjunctiva |
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Lacrimal caruncle Lubricates the eye |
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Sclera |
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Cornea |
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Choroid Highly vascular, pigmented |
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Lens |
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Ciliary body Controls shape of lens |
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Iris Controls size of pupil |
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Pupil Opening within the iris |
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Retina Two layers - pigmented, neural |
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Non-color receptors; work best in dim light; highly concentrated along periphery of retina |
Rods (Rods > cones) |
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Color receptors; work best in bright light; highly concentrated in center of retina |
Cones |
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Fovea centralis Highest concentration of cones |
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Optic disc (blind spot) |
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Optic nerve (Cranial nerve II) |
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Anterior segment, aqueous humor |
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Posterior segment, vitreous humor |
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Lateral rectus |
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Superior rectus |
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Inferior rectus |
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Inferior oblique |
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Superior oblique |
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Which eye muscles are controlled by the oculomotor nerve (III)? |
Medial, superior, inferior rectus Inferior oblique |
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Which eye muscle is controlled by the trochlear nerve (IV)? |
Superior oblique |
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Which eye muscle is controlled by the abducens nerve (VI)? |
Lateral rectus |