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10 Cards in this Set
- Front
- Back
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What is the Ampullae of Lorenzini?
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The structure of shark that gives the ability of sensing extremly weak electric signals,
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How do sharks sense the movement of prey?
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The movement of fish bends the hair cells inside the tube of the lateral lines on shark's body.
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What are the four regions of the PNS, and where do they serve?
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1. Cervical region serves the neck and arms
2. thoracic region serve the body trunk 3. lumbar region serve the legs 4. sacral region serve the bowels and bladder |
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What is Opioid?
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Endogenious substance serves as opium
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What is Allodynia?
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Pain results from a non-injurious stimulus to the skin
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What is the relatioship between sensitivity and threshold?
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Most sensitive parts of the body, lips and fingers have the lowest threshold in the entire body.
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What causes Strabismus?
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Good vision on each eye initially, but tending to use one eye causes the other losing vision.
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Why do Coelacanth have better perception on blue color but no yellow and red?
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Wavelengths of yellow and red colors do not penetrate well in water.
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What are the steps of smelling process?
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Odor molecules diffuse into a mucus layer in the roof of the nose, and activate olfactory receptor neuron via membrane-bound receptor protein. Axons project information to olfactory bulb of the brain.
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Why bitterness is found in various kinds of food?
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Animals tend to spit out the food if they taste bitterness, because bitterness is found in toxic food so spitting prevents them being intoxicated.
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