peristaltic locomotion
Quick Summary
Peristaltic locomotion is a method of movement used by elongated, soft-bodied invertebrates, such as earthworms. This type of locomotion involves the coordinated contraction of circular and longitudinal muscles.1
The process works by alternating waves of muscle contractions:
* Circular muscle contraction: This elongates the body.
* Longitudinal muscle contraction: This shortens and anchors the body.12
These alternating contractions create a wave-like motion that propels the animal forward. This mechanism is also utilized by some other invertebrates, like sea cucumbers, though they may also use other methods like tube feet. Peristalsis is also a fundamental process in the digestive tracts of many animals, including humans, where it moves food and waste through the intestines.13
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locomotionBottom locomotionPeristaltic locomotion is a common locomotor pattern in elongated, soft-bodied invertebrates, particularly in segmented worms, such as earthworms. It involves the alternation of circular- and longitudinal-muscle-contraction waves. Forward movement is produced by contraction of the circular muscles, which extends or elongates the body; contraction of…
Read MorePeristaltic locomotion is a common locomotor pattern in elongated, soft-bodied invertebrates, particularly in segmented worms, such as earthworms. It involves the alternation of circular- and longitudinal-muscle-contraction waves. Forward movement is produced by contraction of the circular muscles, which extends or elongates the body; contraction of…
Read More- locomotionFossorial invertebrates
Peristaltic locomotion, which is generated by the alternation of longitudinal- and circular-muscle-contraction waves flowing from the head to the tail, is similar to the above pattern. Forward progression is more continuous, however, because of the contraction waves. The sites of longitudinal contraction are the anchor…
Read MorePeristaltic locomotion, which is generated by the alternation of longitudinal- and circular-muscle-contraction waves flowing from the head to the tail, is similar to the above pattern. Forward progression is more continuous, however, because of the contraction waves. The sites of longitudinal contraction are the anchor…
Read More