The muscularis layer in the wall of the digestive tract is
A. skeletal muscle throughout the tract, especially in the large intestine.
B. composed of a layer of circular smooth muscle fibers and a layer of longitudinal smooth muscle fibers.
C. the layer of the digestive tract wall that contains capillaries.
D. connective tissue and the peritoneum.
E. in direct contact with the food that is consumed.
Answer: B
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