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A process whereby force is generated within smooth muscle tissue, resulting in a change in muscle geometry. Force generation involves a chemo-mechanical energy conversion step that is carried out by the actin/myosin complex activity, which generates force through ATP hydrolysis. Smooth muscle differs from striated muscle in the much higher actin/myosin ratio, the absence of conspicuous sarcomeres and the ability to contract to a much smaller fraction of its resting length. A process whereby force is generated within phasic smooth muscle tissue, resulting in a change in muscle geometry. Force generation involves a chemo-mechanical energy conversion step that is carried out by the actin/myosin complex activity, which generates force through ATP hydrolysis. In the phasic smooth muscle, the muscle contraction occurs without an ordered sarcomeric structure. Phasic smooth muscle contraction occurs in a series of discrete contractions and relaxations. A wavelike sequence of involuntary muscular contraction and relaxation that passes along the ureter, impelling the contents onwards. The ureter is one of a pair of thick-walled tubes that transports urine from the kidney pelvis to the urinary bladder. A wavelike sequence of involuntary muscular contraction and relaxation that passes along a tubelike structure, such as the intestine, impelling the contents onwards.

View Gene Ontology (GO) Term

GO TERM SUMMARY
Name: peristalsis
Acc: GO:0030432
Aspect: Biological Process
Desc: A wavelike sequence of involuntary muscular contraction and relaxation that passes along a tubelike structure, such as the intestine, impelling the contents onwards.
Proteins in PDR annotated with:
   This term: 30 [Search]
   Term or descendants: 30 [Search]


[geneontology.org]
INTERACTIVE GO GRAPH

GO:0030432 - peristalsis (interactive image map)
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