ANATOMY

Detailed explanation-1: -Neurotransmitters that act as neuromodulators include acetylcholine, dopamine, serotonin, histamine, and cannabinoids. Some neurotransmitters, such as acetylcholine and dopamine, can create both excitatory and inhibitory effects depending upon the type of receptors that are present.

Detailed explanation-2: -Neurotransmitters all serve a different purpose in the brain and body. Although there are several different minor and major neurotransmitters, we will focus on these major six: acetylcholine, dopamine, norepinephrine, serotonin, GABA, and glutamate.

Detailed explanation-3: -Dopamine is a neurotransmitter involved in controlling movement and posture. It also modulates mood and plays a central role in positive reinforcement and dependency. The loss of dopamine in certain parts of the brain causes the muscle rigidity typical of Parkinson’s disease.

Detailed explanation-4: -Dopamine and acetylcholine are among the most important neurotransmitters in the body. They are involved in the regulation of vital functions including voluntary and involuntary movement, pain processing, pleasure, mood, smooth muscle contraction, and blood vessel dilation, among many others.

Detailed explanation-5: -Examples of neurotransmitters representing the major families. (A) Norepinephrine, (B) dopamine, (C) serotonin, (D) acetylcholine, (E) glutamic acid, and (F) -aminobutyric acid (GABA) are small molecule neurotransmitters, where glutamic acid is also an amino acid neurotransmitter.