since the essential difference between the ex vivo and the intact intestine was the preservation of efferent and afferent nervous connections in the latter , it seems that in the conscious animal , the response to exogenous motilin is modulated by the innervation of the intestine , or , alternatively , motilin interacts with the centre controlling the pattern of motor activity in the small intestine rather than directly with smooth muscle .
C0021853
intestine
C0021852
small intestine