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28 Cards in this Set
- Front
- Back
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What is a sensillae?
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Structure that recives stimuli.
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What is stimulus reaction?
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Stimulus->nerve impulse->CNS interpretation->reaction
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what are 2 types of receptors and what do they do and how are they triggered?
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1)mechanoreceptors-detect change in setae (hair)recepton(extention in cuticle), stress on cuticle, solid,liquid or gas can trigger.
2)chemoreceptor-recives various molecules. A depolarization of cell membrane triggers a nerve impulse. |
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What is cross pattern firing?
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Ability to perceive many chemicals with only a few recepters.
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Heat/vision/magnetic detection is annalogous to.
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Thermo/photo/magnetoreception
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Recepter/nerve cells are modified what?
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epithelial cells
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What are the 2 cell types for nerves?
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Trichogen(hair)/tormogen(socket)
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What are the 4 trichogen sensilla?
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1.sensilla trichodea(hair)
2. " Chaetica(bristle) 3. " Squomaformica(scale 4. " Basilonica(peg/cone |
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What are the 2 tormagen sensilla?
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1.Sensilla coeloconic(shallow pits)
2. " ampulacea (deep pits) |
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What is campaniform sensilla?
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Shallow pits with dome(no hairs/cones etc)
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What are placoid sensilla?
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Shallow pits with flat plate (no hairs/cones etc)
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What is a proprioreceptor?
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a chordotonal organ or Johnstons organ, which is a 2nd antenomere(deflected backwards for windspeed direction)
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Where is the subjenual organ found (suspected) and what does it detect?
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Found in tibia (suspected) and detects leg stress.
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What are tympanal organs annalogous with in humans?
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Ear drums
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Thermoreception is most important to which type of insects in conjunction with lactic acid/why?
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Bloodfeeders. They seek out C02 and lactic acid to find a "meal".
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Infrared radiation is converted to heat how?
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Radiation distorts thin cuticle->mechanoreceptors/companiform sensillae detect distortion
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Compound eyes are composed of?
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ommitidea (up to 30k in each compound eye)
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Apposistion is synoynomous with?
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daytime active (diurnal)
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how do fast flying insects see?
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flicker vision
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Superposition refers to
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nocturnal (corpuscular) vision
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What is the mosaic theory?
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Muller said it was like looking through a handfull of soda straws.
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What are ocelli?
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Extra simple eyes for light intensity, also referred to as pineal eyes.
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What insects are stemmata(basic light receptors) found in?
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holometabolous insect larvae
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Photoreception is limited only to the head? T/F
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False, found in various areas of body.
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How does magnetoreception work?
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A small iron deposit with in the insect.
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Aquaspirrilum and magnetatbactium are also known as?
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Swimming magnet
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Do mayflies have a need to feed as an adult?
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No
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1.What does anantogenous mean?
2.antogenous? |
1.must feed to reproduce
2.no need to suck blood to reproduce. |
