It travels in one direction either afferent or efferent.
If the motion is on a straight line and the impulse reverses the direction, the impulse will follow the same direction as the final motion.
The direction of impulse for motor neurons is away from the brain.
impulse is equal to force which is acting on the body and ti me in small interval which is equal to momentum.so impulse is equal to change in momentum and direction of impulse is consider the direction of force and change in momentum.
The impulse on the colliding objects will be equal and opposite. impulse = m(vf- vi)
The knee-jerk reflex is controlled by the interneurons in the spinal cord.
Interneurons
What connects sensory and motor neuron is the impulse called interneuron or connector neuron are connected by means of electrical impulse called synape from sensory to motor neuron.
axon to dendrite
A nerve impulse travels toward the actual nucleus itself to pass information.
No, not directly. Some sensory neurons can detect the effect of a motor neuron firing.
Interneurons
Yes. Sensory neurons sense a change in the stimulus and alert the interneurons located in the brain which send an impulse to the motor neurons to make the muscle contract.