The term giant is sometimes used when describing nevi. A giant nevus covers a very large part of the body, usually involves the torso, and is usually accompanied by a number of satellite nevi. Satellite nevi (or just satellites) are smaller melanocytic nevi. When a child is born with a giant nevus, it is common for satellite nevi to be present at birth.
Receptors for the various neurotransmitters are located on both the presynaptic and postsynaptic nerve terminals of the neuron.hey are present in all of the nerve cells, but predominately in the ganglia or nerve bundles of invertebrates, and in the central nervous system (brain and spinal cord) of vertebrates. There are many kinds of neurotransmitter chemicals.
Receptors are nature's transducersâthey detect circulating hormones or substances released by nerve activity and elicit a biological response.Our research centers on specialized types of receptors called synaptic receptors, found on the surfaces of cells in close proximity to nerve terminals.f the receptor is located on a muscle cell, the impulse triggers contraction. Whereas if it is on a nerve cell, it causes release of transmitter substance on yet another cell. In this way, excitable cells communicate throughout the body by means of specialized pairs of neurotransmitter substances and receptors.