Brain to Body Impulse Path

Brain to Body Impulse Path The role that the brain plays in providing the body with various commands for daily functions is simply amazing. This is because of the complex structure that exists between the brain and the nervous system. As it is attempting to instantaneously respond to various stimuli that is being received. Yet, to fully understand this process requires that you examine the how the brain sends messages to the different muscles in the body and the steps in which the brain sends messages to the body.

This will provide the greatest insights as to how this complex system works, which allows the body to effectively function. Write how you trace the impulse, listing the steps in as much detail as possible, from which your brain sends the message to the appropriate muscles to step up one step. Specifically include the steps involved in transmitting the impulse from the neuron to the muscle fiber at the neuromuscular junction. Specify which muscles are pulling on which bones and what types of joints are involved.

The nervous system is broken down into two parts, the central nervous system and the peripheral nervous system. The central nervous system consists of the brain and spinal cord. The peripheral nervous system controls those responses that are instincts and transmits vital information to other parts of the body. When the brain receives stimuli from the outside world; a signal is sent to the particular part or parts of the body to react. Where, a message is sent from the central nervous system to the peripheral nervous system.

It is in the peripheral nervous system that you will find neurons. These are special cells use to carry the different messages to the various muscles. The different neurons communicate with each other through synapses. These are membranes that interconnect the different neurons together. Once the message reaches a particular muscle group, the neurons communicate the command to the various muscles groups or joints. Through what is known as a neuromuscular junction, this is where the synapses are connecting to the actual muscle itself.

For example, if the central nervous system gave a command to flex the right arm, an impulse would be passed from the central nervous system to the peripheral nervous system. As it is passed from neuron to neuron through the different synapses, it reaches the neuromuscular junction. Where, the neurons send out specific messages to specific muscles at the distant parts of the body. In the case of flexing the right arm, the neuromuscular joint would cause the bicep to expand, while the triceps would relax.

To lift the lower right arm the neuromuscular joint will have the bicep pull the hinge joint (the elbow joint) inward toward the body. (Jakab, 2006) Write how you trace the impulse, listing the steps in as much detail as possible, from which your brain sends the message to the appropriate muscles to reach up above your head to the shelf. Include in this the steps involved in the actual muscle fiber contraction sliding filament mechanism.

Again, specify which muscles are pulling on which bones and what type of joints is involved. When impulses are going from the muscle to the brain, the brain controls the intensity and how long the muscle will engage in such activities. However, once it is determined to allow the muscle to contract, the brain will send messages through the different neurons to the muscle group. When the muscle is contracting it will use sliding filament mechanisms. This is when myosin (a protein like substance that functions like a.