the distribution of radiochromium ( 51cr ) throughout the small intestine of rats previously treated with saline ( 1.0 ml/kg s.c. ) , capsaicin ( 10 mg/kg s.c. ) , hexamethonium ( 20 mg/kg i.p . ) , d-ala2-met-enkephalinamide ( 1.0 microgram i.c.v . ) , or neostigmine ( 0.1 mg/kg i.p . ) was quantified by ( 1 ) measuring the most distal intestinal segment reached by chromium , ( 2 ) calculating the slope produced by linear regression analysis on cumulative percent chromium that had passed through each segment , and ( 3 ) determining the geometric center of the distribution of chromium throughout the small intestine .
C0021853
intestinal
C0021852
small intestine