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First half of study guide: Insect Locomotion and Movement
Bizarre Bugs Alien Empire - Midterm 1 - first half of study guide - insect locomotion and movement
5
Science
Undergraduate 3
03/10/2015

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Term
list and describe the three properties that are important for walking
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)
Term
insects typically use what type of gait?
Definition
alternating tripod gait, but leg phasing is not always precisely synchonous
Term
what are the benefits of using this gait?
Definition
very stable, can be fast. speed improves if leg length increases from front to back
Term
what alternative gaits were suggested and why are they disadvantages?
Definition
one segment at a time: stable, but slow

side to side: can be fast, but unstable
Term
what is the difference between indirect and direct flight muscles?
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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