omplete the sentence. Some  carry signals that tell  to contract. muscles . . . nervestendons . . . nervesnerves . . . musclesnerves . . . tendonsSubmit

Some nerves carry signals that tell muscles to contract.

In the context of the human body, the nervous system plays a crucial role in the control of muscle movements. Nerves, which are part of the peripheral nervous system, transmit electrical impulses from the brain and spinal cord to various parts of the body, including the muscles. When a signal is sent from the brain to a muscle, it indicates to the muscle fibers that they should contract, leading to movement. This process is essential for various activities, from simple movements like lifting an arm to complex actions like running or playing sports. Hence, the complete sentence accurately describes the relationship between nerves and muscles in the control of contraction.