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Neurotransmitters - Anatomy & Physiology (view source)
Revision as of 16:28, 23 August 2011
, 16:28, 23 August 2011→Biogenic Amines
====Biogenic Amines====
====Biogenic Amines====
'''Epinephrine''' is produced by the adrenal glands. It is primarily involved in an overall activation of the sympathetic nervous system and is involved in the management of stress. '''Norepinephrine''' is also produced by adrenal glands and is involved in the initiation and maintainence of conciousness within the sympathetic nervous system. Both types of neurotransmitter utilise α or β receptors and are metabotropic. '''Dopamine''' is involved in motivation as well as love and addiction. '''Serotonin''' is involved in emotions, conciousness, sleep and thermoregulation. '''Melatonin''' is responsible for the regulation of onset of sleep and also for seasonal changes in the body such as winter weight gain and mating seasons. '''Histamine''' release results in increased gastric secretions, dilation of capillaries, constriction of bronchial smooth muscle and decreased blood pressure.
'''Epinephrine''' is produced by the adrenal glands. It is primarily involved in an overall activation of the sympathetic nervous system and is involved in the management of stress. '''Norepinephrine''' is also produced by adrenal glands and is involved in the initiation and maintainence of conciousness within the sympathetic nervous system. Both types of neurotransmitter utilise α or β receptors and are metabotropic. If an α<sub>1</sub> adrenergic receptor is bound this will result in depolarisation of the cell and vasoconstriction of the skin and viscera. If a β<sub>1</sub> receptor is bound this will also result in cellular depolarisation and an increase in heart rate and contractility. If a β<sub>2</sub> receptor is bound this will result in hyperpolarisation of the cell which will cause dilation of the bronchioles of the lung.
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'''Dopamine''' is involved in motivation as well as love and addiction. '''Serotonin''' is involved in emotions, conciousness, sleep and thermoregulation. '''Melatonin''' is responsible for the regulation of onset of sleep and also for seasonal changes in the body such as winter weight gain and mating seasons. '''Histamine''' release results in increased gastric secretions, dilation of capillaries, constriction of bronchial smooth muscle and decreased blood pressure.
====Other SMTs====
====Other SMTs====