Word | Noun | Adjective | Verb | Adverb |
---|---|---|---|---|
sympathetic nervous system | Yes | No | No | No |
beta-adrenergic receptor | Yes | No | No | No |
sympathetic nervous system (noun) | beta-adrenergic receptor (noun) |
---|---|
originates in the thoracic regions of the spinal cord; opposes physiological effects of the parasympathetic: reduces digestive secretions; speeds the heart; contracts blood vessels | receptors postulated to exist on nerve cell membranes of the sympathetic nervous system in order to explain the specificity of certain agents that affect only some sympathetic activities (such as vasodilation and increased heart beat) |