Which Is TRUE About Gastric Motility

question 76

Multiple Choice

Which is TRUE about gastric motility?

• A)The basic electrical rhythm of the gastric smooth muscle (three depolarizations per minute)is the same regardless of whether or not food is present.
• B)Gastric contractions are strongest in the fundus of the stomach.
• C)The force of contraction is decreased by gastrin and increased by enterogastrones.
• D)When a wave of excitation reaches the pyloric sphincter,action potentials become inhibitory and the sphincter opens wide to allow chyme to exit.
• E)The term "slow waves" refer to gastric contractions,while "pacemaker" refers to gastric action potentials.

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