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18 Cards in this Set
- Front
- Back
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Fibrous tunic of eye
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1. sclera
2. cornea |
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vascular tunic of the eye
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1. choroid
2. ciliary body 3. iris |
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sclera`
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- dense irregular CT
- bundles of collagen with few elastic: arranged parallel to surface of eyeball - fibrous tunic |
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cornea
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1. anterior epithelium: nonkeratinized stratified squamous
2. subepithelial basement membrane 3. substantia propria: collagen fiber lamellae 4. posterior limiting membrane: highly reftractile thick BM 5. posterior epithelium (corneal endothelium): simple squamous - fibrous tunic |
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choroid
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- dense network of blood vessels embedded in heavily pigmented CT
- vascular tunic |
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tapetum lucidum
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- dorsal half of the fundus of the eye: light-reflecting area of the choroid
- cells contain crystalline rods: reflect - reason animals eyes shine when looking towards the light |
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ciliary body
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-rostral continuation of the choroid
- vascular tunic |
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iris
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- highly vascularized CT
- pigmented epithelium: eye color - vascular tunic |
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retina/ nervous tunic of the eye
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1. pigmented epithelium
2. photreceptive layer: rod black and white(night) , cones color ( day) 3. external limiting membrane 4. outer nuclear layer: bipolar neurons 5. outer plexiform layer 6. inner nuclear layer: bipolar neurons 7. inner plexiform layer 8. ganglionic cell layer: multipolar neurons 9. optic nerve fiber layer 10. internal limiting membrane |
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lens
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1. capsule
2. epithelium 3. fibers - cataracts: clouding |
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lacrimal gland
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-compound tubulo- alveolar
1. serous: ruminants, cats 2. seromucous: dogs |
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external ear
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1. auricle ( pinna)
2. external auditory canal |
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middle ear
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1. auditory ossicles: malleus, incus, stapes
2. tympanic cavity 3. auditory tube |
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internal ear
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1. bony labyrinth: filled with perilymph
2. membranous labyrinth: filled with endolymph |
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crista ampullaris
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- in membraneous ampulla of each semicircular duct
- sensory epithelium - membranous labyrinth of internal ear |
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macula utriculi and sacculi
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-sensory epithelium
- utricle and saccule - membranous labyrinth of internal ear |
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vestibular mechanism
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these components are responsible:
1. cristae ampullaris 2. macula utriculi 3. macula sacculi - membranous labyrinth of internal ear |
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spiral organ (organ of corti)
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1. sensory cells
2. supportive cells 3. afferent and efferent nerve terminals 4. tectorial membrane - membranous labyrinth of internal ear |
