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42 Cards in this Set
- Front
- Back
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Super part of the nasal cavity that covers the inferior part of the cribriform plate... |
Olfactory epithelium |
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Three Components of Sense of Smell |
1. Olfactory receptors 2. Supporting cells 3. Basal cells |
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Bipolar, first order neurons that project through cribriform plate and ends in olfactory bulb... |
Olfactory receptors |
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Cells that provide physical support, nourishment and electrical insulation for olfactory receptor cells... |
Supporting cells |
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What type of epithelium are the supporting cells made up of... |
Columnar epithelial cells of mucous membrane |
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Stem cells located between bases of supporting cells... |
Basal cells |
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Eight Structures of Vision |
1. Iris 2. Cornea 3. Pupil 4. Lens 5. Retina 6. Fovea 7. Optic Nerve 8. Blind Spot |
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- Coloured part of eye - Controls pupil size - Contracts/expands to control light input |
Iris |
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- Hard outer cover of eye - "Coarse" focus |
Cornea |
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Hole in iris that lets light in... |
Pupil |
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- Flexible part of eye (contracts) - "Fine" focus - Ligaments or ciliary muscles contract to create focus |
Lens |
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- Captures image - Image captured is upside down |
Retina |
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- Focal point - Greatest concentration of cones |
Fovea |
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Bundles of neurons carrying signals from the eye... |
Optic nerve |
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Where fibers pass through retina an out of eye... |
Blind spot |
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Four Accessory Structures of the Eye |
1. Eyelid 2. Eyelashes/brows 3. Lacrimal apparatus 4. Extrinsic eye muscles |
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Three Layers of the Eyeball |
1. Fibrous tunic 2. Vascular tunic 3. Retina |
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Avascular, outer coating of eyeball... |
Fibrous tunic |
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Vascular, middle layer of eyeball, composed of choroid... |
Vascular tunic |
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Inner coating of eyeball... |
Retina |
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Two Types of Vision |
1. Rods (scotopic) 2. Cones (photopic) |
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Black and white vision of shape and movement... |
Rods |
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Colour vision with highest resolution... |
Cones |
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Two Cavities of the Eye |
1. Anterior compartment 2. Posterior compartment |
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Two Functions of Aqueous Humor |
1. Nourishes lens and iris 2. Maintains pressure |
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Two Functions of Vitreous Humor |
1. Holds retina against choroid 2. Maintains shape and somewhat pressure |
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Four Components of the External Ear |
1. Pinna (auricle) 2. External auditory canal 3. Eardrum (tympanum) 4. Ceruminous glands |
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Three Components of the Middle Ear |
1. Ossicles 2. Oval window 3. Eustachian tube |
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Three Ossicles (in order of sound path) |
1. Malleus (hammer) 2. Incus (anvil) 3. Stapes (stirrup) |
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Two Divisions of the Inner Ear |
1. Bony Labyrinth 2. Membranous Labyrinth |
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Three Components of the Bony Labyrinth |
1. Vestibule 2. Cochlea 3. Semicircular Canals |
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Equalizes are pressure in the middle ear... |
Eustachian tube |
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Function of the Vestibule |
Body balance/equilibrium |
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Function of the Cochlea |
Auditory portion of inner ear |
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Function of the Semicircular Canals |
Balance/equilibrium |
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Contains: - utricle/saccule - semicircular ducts - endolymph (fluid that helps generate auditory signals) |
Membranous Labyrinth |
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Two Membranes of the Cochlea |
1. Basilar Membrane 2. Tectorial Membrane |
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Hairs vibrate (bend) when sound passes through cochlear fluid and rubs against the tectorial membrane... |
Basilar membrane |
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Receptor hairs rubs against this membrane, reading movement... |
Tectorial membrane |
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Nerve of the inner ear that sends balance information to the brain... |
Vestibular nerve |
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Canals filled with fluid and hairs that sense rotational equilibrium... |
Semi-circular canals |
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Contains hairs and gel that sense head movement and gravitational equilibrium... |
Saccule and utricle |
