Some articles on muscles, smooth muscles, smooth:
... symmetrical contraction and relaxation of muscles which propagates in a wave down a muscular tube, in an anterograde fashion ... In humans, peristalsis is found in the contraction of smooth muscles to propel contents through the digestive tract ... In much of the gastrointestinal tract, smooth muscles contract in sequence to produce a peristaltic wave which forces a ball of food (called a bolus while in the esophagus and gastrointestinal tract and chyme in ...
... There are three types of muscles—cardiac, skeletal, and smooth ... Smooth muscles are used to control the flow of substances within the lumens of hollow organs, and are not consciously controlled ... Skeletal and cardiac muscles have striations that are visible under a microscope due to the components within their cells ...
Famous quotes containing the words muscles and/or smooth:
“What is this beast, she thought,
with muscles on his arms
like a bag of snakes?
What is this moss on his legs?
What prickly plant grows on his cheeks?
What is this voice as deep as a dog?”
—Anne Sexton (19281974)
“Hard labor and spare diet they had, and off wooden trenchers, but they had peace and freedom, and the wailing of the tempest in the woods sounded kindlier in their ear than the smooth voice of the prelates, at home, in England.”
—Ralph Waldo Emerson (18031882)