How do signals from sensory neurons reach motor neurons?

Question

Signals from sensory neurons do not get sent to motor neurons
Through interneurons in the brain and spinal cord that connect sensory neurons and motor neurons
Motor neurons signal for the body to move the signal toward them
Signals move from dendrite to dendrite towards motor neurons

Answer 1

The correct answer is:

Through interneurons in the brain and spinal cord that connect sensory neurons and motor neurons.

When sensory neurons detect external stimuli, such as touch, temperature, or pain, they send electrical signals called action potentials towards the central nervous system (brain and spinal cord). These action potentials travel along the sensory neuron's axon towards the spinal cord or brain.

Upon reaching the central nervous system, the action potentials are then transmitted or relayed to interneurons, which are specialized neurons that establish communication between different neurons. Interneurons serve as a bridge between sensory neurons and motor neurons.

The interneurons in the brain and spinal cord receive the sensory signals, process the information, and decide how the body should respond. They then transmit the signals to the appropriate motor neurons, which control the muscles. The motor neurons receive the signals and send action potentials along their axons, leading to muscle contraction or movement.