Which of the following is a function of the nervous system? a releasing atp into contracting muscle cells b producing lactic acid in fatigued muscle tissues c increasing cellular respiration in muscle tissues d signaling muscle tissues to contract

The correct option is D. The nervous system is made up of the brain, spinal cord, sensory organs and all the nerves that connect these organs with the rest of the body. These organs are responsible for control of the body parts; they do this by sending appropriate signals to the right body part. For example, nervous system can send signal to a muscle to contract when there is a reason to do so.