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abdominal arteries

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abdominal arteries,
the arteries that branch from the anterior surface of the abdominal aorta to supply the abdominal part of the gastrointestinal tract, as well as the liver, pancreas, and gallbladder. The celiac artery supplies the foregut, the superior mesenteric artery supplies the midgut, and the inferior mesenteric artery supplies the hindgut.


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In reaction to a threat, the autonomic nervous system increases heart rate, strength of the skeletal muscles, mental activity, and basal metabolic rate; dilates the coronary arteries, pupils, bronchial tubes, and arterioles; and constricts the abdominal arteries.
That study, described in the July 14, 1989 SCIENCE, showed that drugs can constrict or dilate abdominal arteries in rats and rabbits by manipulating potassium channels sensitive to adenosine triphosphate (ATP), the fuel that powers cells.
 
 
 
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