One function of the human endoskeleton is to:
A. transmit impulses.
B. produce blood cells.
C. produce lactic acid.
D. store nitrogenous wastes.
Our skeletal system functions to support us and give us shape, to act as an attachment for muscles, for leverage for muscles to contract, and to produce blood cells in the marrow, or inside of certain bones. The nervous system transmits impulses, muscle cells produce lactic acid during strenuous workouts, and nitrogenous wastes are stored in the urinary bladder.