The axon of the sensory neuron is very close to the dendrite of the motor neuron. The axon of the sensory neuron sends a chemical signal called a neurotransmitter to the dendrite of the motor neuron.
1 You should install the mailbox with the bottom of the box at a vertical height of between 41-45 inches from the road surface. . 2  Your house number should be clearly marked on the mailbox with painted numbers or stickers no less than 1 high.
The Requirements. Curbside mailboxes are typically mounted on 4-by-4-inch wood posts or 2-inch diameter metal poles. These posts or poles must be set into the ground so that when the mailbox is attached, the inside floor of the box is 41 to 45 inches above the ground.