on voluntary actions that it it is controlled by nervous system

Voluntary actions are those that we consciously control, such as walking, talking, or picking up an object. These actions are controlled by the somatic nervous system, which is a part of the peripheral nervous system. Here's a step-by-step explanation of how this works:

1. Decision Making: The process begins in the brain, where the decision to make a voluntary movement is made. This decision is often influenced by sensory input, such as sight or sound.

2. Signal Transmission: Once the decision is made, a signal is sent from the brain down the spinal cord. This signal is transmitted via neurons, which are specialized cells that can carry electrical impulses.

3. Muscle Contraction: The signal then reaches the muscles that need to move. The neurons release neurotransmitters, which bind to receptors on the muscle cells and cause them to contract.

4. Movement: The contraction of the muscle cells leads to movement. For example, if you decide to pick up a cup, the muscles in your arm and hand will contract to allow you to make this movement.

5. Feedback: As you're making the movement, your body is constantly sending feedback to your brain. This allows you to adjust your movement if necessary. For example, if the cup is heavier than you expected, your brain will receive this information and adjust the signal it's sending to your muscles.

So, in summary, voluntary actions are controlled by the nervous system through a complex process of decision making, signal transmission, muscle contraction, movement, and feedback.