What Causes Segmentation

question 197

Multiple Choice

What causes segmentation?

• A)contraction of longitudinal muscle at one intestinal segment coupled with its relaxation at adjoining segments
• B)relaxation of circular muscle layer and contraction of the longitudinal muscle at one segment coupled to the relaxation of longitudinal muscle and contraction of the circular muscle in the adjoining segments
• C)contraction of both the circular and longitudinal layers of muscle at one segment coupled with the relaxation of both at adjoining segments
• D)contraction of the circular muscle at one intestinal segment coupled with its relaxation at adjoining segments
• E)contraction of the circular muscle at one intestinal segment coupled with contraction of the longitudinal muscle at adjoining segments

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Definitions:

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Predictable Pattern

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