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Neurotransmitters v. Hormones Neurotransmitters: The body’s natural chemical messengers which transmit information from one neuron to another. The neurotransmitters are stored in the neurons terminal buttons. After crossing the synapse, the neurotransmitters fit into receptor sites on the post-synaptic membrane like a key in a lock. They can impact mood, memory, sexual arousal, and mental illness. Neurotransmitter Acetylcholine Effect Muscle contraction, and a role in the development of memory in the hippocampus Dopamine Norepinephrine (noradrenaline) Serotonin Voluntary movement, learning, and feelings of pleasure Arousal, alertness, and stimulation of the sympathetic nervous system. Sleep, arousal levels, and emotion Hormones: A class of chemicals that affect behavior. They are produced in the glands that make up the endocrine system. Hormone Adrenaline Cortisol Melatonin Oxytocin Testosterone, Oestrogen Glands Adrenals Adrenals Pineal Pituitary and hypothalamus Gonads Function Flight or fight response, arousal Arousal, stress hormone, memory Regulation of sleep Mother-child attachment Development, emotion
