Question

In the hind limbs of the terrestrial vertebrate the extensor muscles are usually larger than flexor why do you think this is so​

[please answer]

Answer 1

Extensor muscles in the hind limbs of terrestrial vertebrates are typically bigger than flexor muscles because they serve an important function in supporting the animal's weight and allowing it to stand and move on land. The extensor muscles are in charge of extending the limbs and maintaining body posture against gravity, which takes a significant degree of strength and endurance. Flexor muscles, on the other hand, are in charge of bending the joints and raising the limbs off the ground, which takes less energy and strength. To successfully support the animal's weight and maintain its posture, the extensor muscles must be bigger and stronger than the flexor muscles.