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Why does the sympathetic division of the ANS have a more widespread and longer lasting effects than the parasympathetic division?
Wiki User
∙ 14y ago
That may seem possible from illustrations, but in actuality the role of homeostasis is to have both systems functioning equally to maintain balance in the body systems.
1. After parasympathetic fibers secret acytelcholine it is quickly broken down by acytelcholinesterase, which makes parasympathetic effects only a few seconds long.
Wiki User
∙ 14y ago
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What is between the sympathetic and the parasympathetic nervous system?
The parasympathetic and sympathetic divisions of the autonomic nervous system or antagonistic. They have opposing effects.
The effects of sympathetic and parasympathetic stimulation of the salivary glands are called?
complementary
The effects of the sympathetic nervous system are essentially opposite of which 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.
What effects would the sympathetic and parasympathetic system have on insulin secretion?
Studies seems to indicate that the sympathetic system decreases insulin secretion, while the parasympathetic system increases insulin secretion.
The separate effects of sympathetic and parasympathetic innervation of the pacemaker region of the heart can best be described as?
antagonistic
In general parasympathetic activation will produce effects that are to those produced by activation of sympathetic neurons?
antagonistic
List the division of the autonomic nervous system?
the autonomic nervous system (ANS) includes the peripheal nerves and ganglia on either side of the spinal cord ( note: some textbooks include the ANS as a division pf the peripheal nervous system both ways are correct.)
How can sympathetic and parasympathetic fibers exert antagonistic effects?
Sympathetic fibers convey impulses that stimulate our "fight or flight" response. Parasympathetic are just the opposite, you might say they are for "rest and digest". They are both firing at the same time but depending on your environment and emotional state, one will dominate over the other. Sympathetic and parasympathetic fibers release different neurotransmitters, which bind to different receptors. Three structures that receive sympathetic innervation are the adrenal glands, arrector pilli muscles, and sweat glands.
When the sympathetic division of the autonomic nervous system is activated its effects can be prolonged by secretions of the?
When the sympathetic division of the autonomic nervous system us activated its effects can be prolonged by the secretions of the epinephrine by the adrenal medulla. Adrenal medulla is the inner most part of the adrenal gland.Ê
The autonomic nervous system contains two branches called the?
The autonomic nervous system also has two divisions: the sympathetic division and the parasympatheticdivision. These two divisions have antagonistic (opposing) effects on the internal organs they innervate (send nerves to act on).The sympathetic division, shown at the left, is the emergency system. It prepares the body to put out energy and to protect it from effects of injury. It shuts the gut down, speeds up the heart, increases blood pressure, dilates (makes bigger) the pupils of the eyes, makes more glucose (blood sugar) available in the blood for energy, etc. Cannon described these reactions as preparation for fight or flight (running away).The parasympathetic division, shown at the right, is the "housekeeping" division. It acts to replace and recover from the activities of living. Its action is (almost always) the opposite of the sympathetic division. It activates the gut for digestion, slows the heart rate, decreases the blood pressure, etc.
What best demonstrates an example of cooperation of the parasympathetic and sympathetic nervous systems?
The best example of cooperative autonomic effects is seen in controls of the external genitalia. Parasympathetic stimulation causes vasodilation of blood vessels in the external genitalia, and is responsible for erection of the male penis or female clitoris during sexual excitement. Sympathetic stimulation then causes the ejaculation of semen by the penis or reflex contractions of the vagina during an orgasm.
Does direct neural stimulation through the sympathetic division promote many metabolic effects via hormone release?
True
