Locomotion in an Amphibian(Endoskeleton

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Characteristic of Frog

• Move by Leaping, crawling and swimming.

• Have long hind legs with well developed muscles to lift them off the ground.

• Hind legs are long and are folded into a ‘ Z shape when the frog is at rest.

Look at how a frog leaps forward using its hinds legs

Function and Mechanism of Frog

• The action off hopping takes place when the extensor muscles contract rapidly causing the hind legs to straighten suddenly.

• The Force produce is used to push the animal upwards & forwards.

• The frog lands on its short and small forelimbs to absorb the shock of impact.

• It also crawls by extending & retracting its fore and hind limbs.

Frog Bone Structure

The End….Thank you