Describe the orientation of smooth muscle fibers in the muscular layer of the digestive tract
A) The cells align parallel to each other and form an inner circular layer and an outer longitudinal layer.
B) The cells align parallel to each other and form an inner longitudinal layer and an outer circular layer.
C) The cells align perpendicular to each other and form an inner circular layer and an outer longitudinal layer.
D) The cells align perpendicular to each other and form spiraling bands.
E) The cells align obliquely to each other and form three interwoven layers.
Answer: A
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