Term
| list and describe the three properties that are important for walking |
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Definition
speed: not just fast, but the ability to modulate speed
directionality: steering toward resources or away from stress sources
stability: limb movement has two phases
stance phase (on the ground) vs wing phase (off the ground) |
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Term
| insects typically use what type of gait? |
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Definition
| alternating tripod gait, but leg phasing is not always precisely synchonous |
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Term
| what are the benefits of using this gait? |
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Definition
| very stable, can be fast. speed improves if leg length increases from front to back |
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Term
| what alternative gaits were suggested and why are they disadvantages? |
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Definition
one segment at a time: stable, but slow
side to side: can be fast, but unstable |
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Term
| what is the difference between indirect and direct flight muscles? |
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Definition
indirect flight muscles: flap the wings
these muscles don't attach to the wings, they deform the thorax, causing wings to flap
direct flight muscles: control direction
these muscles pull on small bits of cuticle at the wing base
contraction of direct and indirect muscles provides lift and thrust |
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