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Eye/Ear NWHSU
Eye and ear anatomy for gross anatomy 2
| Question | Answer |
|---|---|
| Specifically, where are the optic maculae located? | Lateral to optic disc |
| Triangluar space at medial angle of eye where tears collect. | Lacrimal lake |
| Name the adductor muscles of the eye. | Medial, superior, and inferior rectus mm. |
| List the structures concerning the flow of aqueous humor in the eye beginning with ciliary body. | Ciliary body > posterior chamber > pupil > anterior chamber > trabeculae > scleral venous sinus > vein. |
| Small reddish conical body of skin containing sebaceous and sweat glands; produces a whitish secretion. | Lacrimal caruncle in lacrimal lake |
| Chamber between the iris and lens. | Posterior chamber of the eye |
| Name the abductor muscles of the eye. | Lateral rectus, superior oblique, inferior oblique |
| The minute small cavities at junction of the iris and cornea and drains aqueous humor from the anterior chamber of the eye? | Trabeculae |
| Small openings into the superior and inferior lacrimal canaliculi. | Superior and inferior lacrimal puncta |
| Named branch of CN7 passing through the middle ear just medial to the malleus. | Chorda tympani n. |
| Branch of CN7 that conducts taste from the anterior 2/3rd of the tongue and some autonomics to the salivary glands. | Chorda tympani n. |
| Dorsal projection of the exernal ear, located anterior to concha and over the orifice of the external acoustic meatus. | Tragus |
| Chamber of cochlea into which round window opens. | Scala tympani |
| Specifically where are the auditory maculae? | Wall of utricle and saccule |
| Fluid found in the membranous labyrinth. | Endolymph |
| Outer rim of the auricle. | Helix |
| The _____ ossicle fits into the ____ window. | Stapes, oval |
| The triangular cochlear duct is separated from the scala vestibule by ____, and separated from the scala tympani by the ____. | Vestibular membrane, basilar membrane |
| Suspensory ligaments travel from the lens to the ____. | Ciliary body |
| Name the receptor for static equilibrium. | Maculae |
| Portion of osseous labyrinth into which oval window opens. | Vestibuli |
| Innervation of tensor tympani. | CN5-mandibular |
| Deepest depression of the auricle. | Concha |
| Cutaneous nerves of the auricle. | Great auricular, auriculotemporal |
| Name the walls of the tympanic cavity. | Tegmental (roof), jugular (floor), membranous (lateral), labyrinthine (medial) |
| Structure that connects the tympanic cavity to the nasopharynx. | Pharyngotympanic tube |
| Nerve to stapedius arises from ___. | CN7 |
| Path of sound waves from EAM to inner ear. | Tympanic membrane > ossicles > stapes > oval window > perilymph > scala vestibuli > helicotrema > scala tympani > basilar membrane > hair cells > cochlear nerve. |
| The transparent mucous membrane covering the internal eyelid. | Palpebral conjunctiva |
| Production of lacrimal fluid is stimulated by parasympathetic impulses from ____. | CN7 |
| The fibrous outer layer of the eyeball. | Sclera |
| The dark reddish brown layer between the sclera and the retina. | Choroid |
| The two involuntary muscles controlling the size of the pupil. | Sphincter pupillae, dilator pupillae |
| The depression in the center of the macula lutea. | Fovea centralis |
| Muscle that elevated superior eyelid. | Levator palbebrae superioris. |
| Muscles that rotate eyeball laterally. | Inferior oblique, inferior rectus |
| Muscles that rotate eyeball medially. | Superior oblique, superior rectus |
| Located in the lateral aspect of the roof of the orbit, it has both superior and inferior parts. | Lacrimal gland |
| Duct running from lacrimal sac and opening into nasal cavity. | Nasolacrimal duct |
| A semilunar fold of conjunctiva. | Plica semilunaris |
| Drains aqueous humor from the trabeculae and delivers it to small veins in the immediate area. | Scleral venous sinus (Canal of Schlemm) |
| In night vision animals, the choroid has reflective, iridescent portions termed _____. | Tapetum lucidum |
| The ossicles transform the pressure on the tympanic membrande to a ____ times greater pressure on the cochlear fluid. | 22 |
| Modified sweat glands in the external acoustic meatus secrete ____. | Cerumen |
| Three canals branching posterolateral from the vestibule. | Semicircular canals |
Created by:
sdschwartz
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