the ratio of a preganglionic neuron to
The sympathetic and parasympathetic nervous systems are subdivisions of the autonomic nervous system.
the ephinephrine is secreted from sympathetic or parasympathetic
The parasympathetic and sympathetic divisions of the autonomic nervous system or antagonistic. They have opposing effects.
The parasympathetic and sympathetic systems are branches of the autonomic nervous system.
The effects of the sympathetic nervous system are essential opposite those of the parasympathetic nervous system. The sympathetic nervous system accelerates functions such as heart rate and breathing and the parasympathetic slows these bodily processes down. The sympathetic also inhibits digestion, whereas the parasympathetic stimulates digestion. The sympathetic nervous system produces "fight-or-flight" reactions, while the parasympathetic functions under relaxed conditions.
parasympathetic and sympathetic nervous systems
parasympathetic and sympathetic nervous systems
Sympathetic
The autonomic nervous system is divided into the sympathetic and parasympathetic systems.
Bronchoconstriction is due to an activation of parasympathetic nervous system.
Vasoconstriction is primarily controlled by the sympathetic nervous system.
The sympathetic nervous system prepares the body for fight or flight responses, while the parasympathetic nervous system helps the body rest and digest.