When an electric shock is given to the leg of a pithed frog,what happens?

$A$: On repeated application of stimuli,involuntary striped muscles undergo fatigue.
$R$: This is due to non-availability of $ATP$ molecules.

Long bones function as ........

Which is not the function of the endoskeleton?

Analogy type questions:
$(1)$ Carpals : $8$ :: Tarsals : ...........
$(2)$ Cartilaginous joints : Between vertebrae of the vertebral column :: Hinge joint : ...........

Which of the following is not a function of locomotion?