Term
| Types of Receptors; explain what they do |
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Definition
Chemo-
Mechano-
Thermo-
Photo- |
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Term
| Detailed answer: Describe the olfactory receptor |
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Definition
| Odorant attaches to receptor (g-coupled) which then changes the configuration of the protein to signal the release of adenylate cyclase, which catalyzes the the production of cAMP which then opens ion channels and Na+ and Ca++ enters the cell |
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Term
| Taste and why it works the way it does: |
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Definition
Salty: Na+
Sour: H+
The other three (bitter, sweet, umami) binding of specific molecules with receptors in the plasma membrane |
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Term
| Equilibrium is controlled by: |
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Definition
| Vestibular apparatus, which contains the semicircular canals, otolith organs (saccuole and utricle) and hair cells |
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Term
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Definition
| crystals of calcium carbonate |
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Term
| Hair cells (and Stereocilia) |
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Definition
mechanoreceptor cells responsible for senses of hearing and equilibrium
(hairlike extensions that come off of the hair cells) |
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Term
| Purpose of Outer Ear and components: |
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Definition
Ear lobe, auricle and helix:
Channels sound to the middle ear |
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Term
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Definition
| Tempanic membrane, ossicles (malleus, incus and stapes) |
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Term
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Definition
| The hearing organ (made up of a body labyrinth and a membranous labyrinth) |
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Term
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Definition
the three bones (malleus, incus, stapes).
The tempanic membrane vibrates, causing the bones to vibrate which vibrates the OVAL WINDOW (a small membrane between the stapes and cochlea) |
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Term
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Definition
| tough coat of connective tissue that is the outermost layer of the eye |
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Term
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Definition
| Light passes through the cornea, then into the pupil. the iris (muscular tissue) controls the size of the pupil |
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Term
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Definition
| muscular structure that surounds the lens and suspends it |
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Term
| Whats the blind spot of the eye and why? |
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Definition
| Optic Disc: because there are no photoreceptors there |
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Term
| What refracts light in the eye |
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Definition
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Term
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Definition
| is like a forward extension of the brain, with its neural layers facing outward toward the light |
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Term
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Definition
pigment found the rods and cones
made up of two components: the pigment retinal and a protein called opsin |
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Term
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Definition
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Term
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Definition
| Catecholamines (epinephrine, NE) |
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Term
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Definition
| Polypeptides, proteins, and glycoproteins (insuline, growth hormone, LH) |
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