The stomach is the first part of the structure of the digestive system, consisting of a ______________ hollow sac located just below the diaphragm and ribcage.

单选题

The portion of the stomach that protrudes above the gastroesophageal junction is called the ______________.

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单选题

The heart is( )intelligent than the stomach，for they are both controlled by the brain.

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单选题

The stomach is separated from the esophagus and the small intestine by the esophageal sphincter and the _______________ sphincter respectively.

答案解析

单选题

The ___________ is the organ into which the swallowed food is pushed. It connects the throat above with the stomach below.

答案解析

单选题

The stomach is the first part of the structure of the digestive system, consisting of a ______________ hollow sac located just below the diaphragm and ribcage.

答案解析