In the scenario you described, the process of swatting at a mosquito involves a sequence of events that goes from sensory detection to motor response. Here's the order in which the components are involved:
- Dendrites in sensory neurons: They receive the sensory input from the mosquito landing on your hand.
- Axons in sensory neurons: They carry the sensory signal from the dendrites to the spinal cord and brain.
- Dendrites in motor neurons: They receive signals from interneurons or directly from the brain/spinal cord, integrating the response.
- Axons in motor neurons: They carry the motor command to the muscles in your arm to execute the swat.
Therefore, the last component of the nervous system involved in this process is axons in motor neurons.