Term
| how deep does the external ear go to? |
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Definition
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Term
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Definition
| air filled space located in the temporal bone |
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Term
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Definition
| within the petrous temporal bone |
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Term
| visible portion of the ear |
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Definition
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Term
| what controls the appearance of the pinna? |
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Definition
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Term
| canal that leads from the base of the auricle to the tympanic membrane |
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Definition
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Term
| what is adjacent to the funnel shaped base of the auricular cartilage? |
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Definition
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Term
| what is located medial to the auricular cartilage and is embedded in the rostral auriclar mm? |
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Definition
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Term
| what serves as a fulcrum for the attached ear mm? |
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Definition
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Term
| ventrally expanded cavity in the temporal bone wher the middle ear is located |
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Definition
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Term
| how many openings are there b/t the inner ear and middle ear? |
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Definition
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Term
| what shape is the opening b/t the inner and middle ear dorsally? |
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Definition
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Term
| what shape is the opening b/t the inner and middle ear ventrally? |
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Definition
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Term
| how many auditory bones are b/t the ear drum and oval window? |
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Definition
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Term
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Definition
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Term
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Definition
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Term
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Definition
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Term
| a branch of the facial n the passes through the tympanic cavity |
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Definition
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Term
| the chorda tympani carries fibers from what 3 places? |
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Definition
| taste, salivary glands and the eye |
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Term
| what are the mm in the middle ear? |
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Definition
| tensor tympani m and stapedius m |
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Term
| what middle ear m restricts movement of the bones and increases tensionon the eardrum to protect against loud noises? |
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Definition
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Term
| what m of the middle ear works to attenuate loud noises? |
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Definition
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Term
| the auditory tube leads from the middle ear to where? |
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Definition
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Term
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Definition
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Term
| the outer/inner labyrinth is bony |
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Definition
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Term
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Definition
1.semicircular canals
2.vestibule
3.cochlea |
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Term
| which part of the inner ear is for balance and equilibrium? |
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Definition
| semicircular canals and vestibule |
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Term
| which part of the inner ear is for hearing? |
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Definition
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Term
| what are the two parts of the membranous labyrinth? |
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Definition
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Term
| what are attached to the utriculus? |
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Definition
| three semicircular canals |
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Term
| what nerve is in the vestiuble? |
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Definition
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Term
| what fills the membranous labyrinth? |
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Definition
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Term
| what is the substance similar to cerebrospinal fluid that fills the periosteum that lines the bony labyrinth? |
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Definition
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Term
| what are the funcitonal parts of the inner ear? |
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Definition
| vestibular apparatus and the chochlea |
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Term
| central bony core of the chochlea |
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Definition
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Term
| two spaces of the cochlea of the bony labrynth |
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Definition
| scala vestibuli and tympani |
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Term
| what recieves pressure waves in the perilymph from the auditory bones? |
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Definition
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Term
| spiral organ in the cochlea of the inner ear |
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Definition
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Term
| the vestibular apparatus includes what three parts? |
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Definition
1.sacculus
2.utricle
3.semicircular ducts |
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Term
| crystals fo CaCO2 embedded in the otalithic membrane |
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Definition
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Term
| howmany semicircular ducts are attached to the utricle? |
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Definition
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Term
| what detects angular acceleration of the head? |
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Definition
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Term
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Definition
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Term
| 4 parts of the adnexa of the eye |
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Definition
1. palpebrae
2. cilia
3. lacrimal apparatus
4. extrinsic ocular mm |
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Term
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Definition
1.superficial epidermis
2.dermis
3.subcutaneous tissue
4.fibers of the obicularis oculi m
5.tarsal plate
6.tarsal glands
7.conjunctiva |
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Term
| a fold of dense CT that gives support to the eyelid |
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Definition
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Term
| modified sebaceous glands in the lid margins that produce an oil layer of the tear film |
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Definition
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Term
| thin mucous membrane of the eye lid |
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Definition
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Term
| what type cells and specific named cells does the conjunctiva contain? |
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Definition
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Term
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Definition
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Term
| where the upper and lower eyelids join |
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Definition
| canthi (lateral and medial) |
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Term
| thing located in the medial canthus and has sebaceous and dudiferous glands |
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Definition
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Term
| plica semilunaris/nictitating membrane is aka |
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Definition
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Term
| fold of mucous membrane located at the ventromedial border of the eye |
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Definition
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Term
| series of serous seromucoid and mucous glands and duct system in the eye |
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Definition
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Term
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Definition
| through two lacrimal puncta in the medial canthus area into the superior and inferior canaliculi |
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Term
| where does the nasolacrimal duct empty into? |
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Definition
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Term
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Definition
1.dorsal oblique
2.ventral oblique
3-6. dorsal, ventral, lateral and medial rectus mm
7.retractor bulbi m |
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Term
| the dorsal oblique m is innervated by what n? |
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Definition
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Term
| eye m that tapers to a thin tendon which passes around a cartilaginous trochlea anchored to the medial orbital wall |
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Definition
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Term
| eye m that rotates the globe opposite to that of the dorsal oblique m |
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Definition
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Term
| what n innervates the ventral oblique m? |
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Definition
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Term
| m that elevates the upper eyelid |
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Definition
| levator palpebrae superioris m |
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Term
| what n innervates the levator palpebrae superioris m? |
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Definition
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Term
| the dorsal, ventral and medial rectus mm are innervated by what n? |
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Definition
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Term
| the dorsal, ventral and medial rectus mm are innervated by what n? |
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Definition
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Term
| the lateral recutus M is innervated by what n? |
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Definition
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Term
| which two rectus mm rotate the eyeball aroud a horizontal axis side to side? |
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Definition
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Term
| which rectus mm rotate the eyeball around a vertical axis up and down? |
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Definition
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Term
| muscle that has four fascicles that form a cone surrouding the optic n |
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Definition
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Term
| what is the action of the retractor bulbi m? |
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Definition
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Term
| what n innervates the rectractor bulbi m? |
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Definition
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Term
| the conical cavity containing the eyeball and adnexa |
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Definition
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Term
| cone-shaped sheath of ct and smooth m enclosing the eyeball, its mm and its blood vessels and nn. |
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Definition
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Term
| two chambers of the anterior segment of the eye |
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Definition
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Term
| which camber of the anterior segment of the eye is b/t the cornea and iris? |
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Definition
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Term
| which chamber of the anterior segment of the eye is located b/t the iris and the lens |
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Definition
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Term
| the anterior segment of the eye is filled with what? |
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Definition
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Term
| where does aqueous humor drain? |
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Definition
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Term
| a blockage of the sclearal venous sinus leads to what disorder? |
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Definition
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Term
| which segment of the eye is larger? |
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Definition
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Term
| the posterior segment of the eye is filled with what? |
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Definition
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Term
| a gel-like substance containing water and fibers |
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Definition
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Term
| what is the fetal remnant in the eye? |
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Definition
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Term
| what are the three layers of the eye |
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Definition
| fibrous tunic, vascular tunic and nervous tunic |
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Term
| the cornea and sclera are located in what layer of the eye |
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Definition
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Term
| the layers of the cornea are what? |
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Definition
1. outer nonkeratinized stratified squamous epithelium
2.middle of collagen and fibroblasts
3.inner of simple squamous epithelium |
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Term
| t/f the cornea has blood supply |
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Definition
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Term
| t/f the cornea is sensitive w/ many nerve ends |
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Definition
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Term
| t/f the cornea has pigment |
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Definition
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Term
| t/f the cornea has a rough surface |
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Definition
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Term
| white of the eye covering the posterior three quarters of the eye |
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Definition
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Term
| junction of the cornea and sclera |
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Definition
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Term
| the anterior portion of the sclera is covered by what? |
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Definition
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Term
| which aspect of the sclera is penetrated by blood vessels and the optic n? |
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Definition
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Term
| what sinus is located at the junction of the sclera and cornea? |
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Definition
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Term
| what are the three layers of the uvea |
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Definition
1. choroid
2. ciliary body
3. iris |
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Term
| which vascular tunic is highly vasculaizied, dark brown in color and is the posterior part of the uvea |
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Definition
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Term
| the pigment in the choroid aids in what? |
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Definition
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Term
| what landmark is located on the fundus of the choroid? |
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Definition
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Term
| light colored reflective area located in the dorsal part of the fundus of the choroid |
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Definition
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Term
| the tapetum lucidum allows animals to do what? |
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Definition
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|
Term
| what animals do not have a tapetum? |
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Definition
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Term
| folds of tissue containing capillaries that produce aqueous humor |
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Definition
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Term
| the ciliary body contains what kind of fibers? |
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Definition
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Term
| what can alter the shape of the lens to allow for near and far vision? |
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Definition
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Term
| the act of altering the shape of the lens to allow for near and far vision |
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Definition
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Term
| the junction of the ciliary body and the choroid |
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Definition
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Term
| what is the only visible part of the vascular tunic? |
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Definition
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Term
| where aqueous humor is reabsorbed into the venous system |
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Definition
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Term
| irregular outgrowths of the iris containing capillaries |
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Definition
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Term
| iridial grnaules are found in what animals? |
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Definition
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Term
| what color is the iris if there are tightly packed epithelial cells and a high number of pigmented cells |
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Definition
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Term
| what color is the iris if there are fewer pigmented cells but tightly packed epithelial cells are still present |
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Definition
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Term
| what color is the iris if there are a minimal number of pigmented cells |
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Definition
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Term
| what color iris has no pigmented cells |
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Definition
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Term
| the multilayered innermost tunic lining the posterior portion of the eyeball |
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Definition
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Term
| the pigment that makes the interior of the retina appear black has what function |
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Definition
| absorbs scattered and reflected light |
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|
Term
| lower threshold for light and produce images in shades of gray |
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Definition
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|
Term
| higher threshold for light and are responsible for color vision and high visual activity |
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Definition
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|
Term
| domestic mammals have a higher concentration of rods or cones? |
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Definition
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|
Term
| a spot in the posterior part of the eyeball where the optic nerve exits |
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Definition
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Term
| place where only cone cells ate present and producing the high visual acuity |
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Definition
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|
Term
| the lens is made up of what kind of cells? |
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Definition
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|
Term
| what surrounds the lens and attaches to the zonular fibers of the ciliary body? |
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Definition
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