Neurotransmitters

Neurotransmitters

**What is a neurotransmitter?** These are the chemicals that send signals from the axon terminal of one neuron to receptors on the dendrite of another neuron through synapses. **What do neurotransmitters do?** Different neurotransmitters have different functions. Here are some examples of neurotransmitters and their functions.

**Dopamine-** responsible for reward-inspired learning. Highly addictive drugs such as cocaine act directly on dopamine receptors.

**Serotonin-** Responsible for regulation of mood, sleep, and appetite

**Epinepherine-** (also known as adrenaline) when secreted raises heart rate, dilates airways, constricts blood vessels and helps in the fight or flight reaction