Transmitter
Transmitter (Medicine)
Transmitter (pronounced: trans-mit-er) is a term used in the field of medicine and neuroscience to refer to a substance that transmits nerve impulses across a synapse. The term is often used interchangeably with neurotransmitter.
Etymology
The term 'transmitter' is derived from the Latin word 'transmittere', meaning 'to send across'. In the context of medicine, it refers to the transmission of nerve impulses across synapses.
Types of Transmitters
There are several types of transmitters in the human body, including:
- Acetylcholine: This is a neurotransmitter in both the peripheral nervous system (PNS) and central nervous system (CNS) in many organisms including humans.
- Dopamine: This is a type of neurotransmitter that plays several important roles in the human brain and body.
- Serotonin: This is a neurotransmitter that helps regulate mood, appetite, and sleep.
- Norepinephrine: This is a neurotransmitter that is important for attentiveness, emotions, sleeping, dreaming, and learning.
Related Terms
- Neuron: A neuron is a nerve cell that is the basic building block of the nervous system. Neurons are similar to other cells in the human body in a number of ways, but there is one key difference between neurons and other cells. Neurons are specialized to transmit information throughout the body.
- Synapse: A synapse is a structure that permits a neuron to pass an electrical or chemical signal to another neuron or to the target effector cell.
- Receptor (biochemistry): In biochemistry and pharmacology, a receptor is a protein molecule that receives chemical signals from outside a cell.
External links
- Medical encyclopedia article on Transmitter
- Wikipedia's article - Transmitter
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