Time for Some Frog Anatomy

 



As in other higher vertebrates, the frog body may be divided into a head, a short neck, and a trunk (see Vertebrates). The flat head contains the brain, mouth, eyes, ears, and nose. A short, almost rigid neck permits only limited head movement. The stubby trunk forms walls for a single body cavity, the coelom.

The internal organs of humans are housed in one of three distinct hollow cavities—the chest, the abdomen, and the pelvis. The human chest is separated from the abdomen by a powerful muscular partition, the diaphragm. There is no such partition in the frog’s coelom. All the frog’s internal organs—including the heart, the lungs, and all organs of digestion—are held in this single hollow space.

THE SKELETON AND MUSCLES


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