An antagonist blocks the postsynaptic receptor actions of a natural neurotransmitter. The higher the Kd value of a ligand for a receptor, the lower is its affinity for binding. The intensity of neural stimulation is coded by the size of the action potential. The fluid surrounding neurons is chemically similar to seawater. We are sensitive to a restricted range of stimulus energy because of the limits set by our sensory receptors.
Rods are sensitive to color and cones are sensitive in low light.
Humans can improve their sensitivity to sounds by moving the pinna. The size of a part of the body determines the sensitivity of that part. Cortical gyri and sulci are only observed in monkeys and humans. The cytoskeleton is composed of the same material that is used to make bone. An inhibitory potential Match the scientist with his contribution 1.