Describe the structure of the stomach of a frog.

(N/A) $\rightarrow$ The stomach is located on the left side of the body cavity. It is long,broad,and slightly curved in shape.
$\rightarrow$ It consists of two parts: the anterior larger part is called the cardiac stomach,and the posterior narrow part is called the pyloric stomach.
$\rightarrow$ The pyloric end of the stomach is constricted,and its opening into the small intestine is guarded by a sphincter (a circular ring-like muscle).