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Yep! The sympathetic nervous system causes both vasoconstriction & vasodilation. During "fight or flight" you need more O2/blood delivered to your skeletal muscles. The SNS causes vasodilation in skeletal muscles. The other organs, of the body (like digestive organs) are not needed for "fight or flight" survival. The SNS causes vasoconstriction in these organs.
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Would the sympathetic nervous system cause your heart to beat faster when you are under stress?
The answer is "yes." The sympathetic nervous system stimulates responses to strong feeling/emotion (as well as having other "jobs"). So it will cause your heart to beat faster and other "fight or flight" reactions in response to such things as terror, hate, lust and so-on....
Which part of the autonomic nervous system cause increase blood levels?
The sympathetic division causes increases in blood levels to prepare the body to cope with external pressure/ situations (danger, excitement). It is also known as the fight or flight subdivision.
What is the usual cause of decreasing efficiency of the nervous system as a whole?
aging
Which two sytems work with the skeletal system to cause a finger to move?
nervous and muscular system
What is nervous system depression?
Nervous system depression is not the same thing as depression where you feel sad. It means slowing down of the nervous system. Nervous system depression causes things like slowed heartbeat, dulled mental ability, and slow reflexes. Some drugs and medical conditions can cause this. Sedatives are one medication that causes depression of the nervous system.
What would cause vasoldilation of arterioles?
decreased activity of the sympathetic nervous system
What kind of stimulus might cause a reponse from your autonomic system?
The autonomic nervous system is in charge of involuntary functions. There are two divisions-the sympathetic and parasympathetic. The sympathetic nervous system initiates the fight-or-flight response in emergency situations. The parasympathetic nervous system is referred to as the "rest and digest" stage in which the body "slows down" after the fight-or-flight response.
Would the sympathetic nervous system cause your heart to beat faster when you are under stress?
The answer is "yes." The sympathetic nervous system stimulates responses to strong feeling/emotion (as well as having other "jobs"). So it will cause your heart to beat faster and other "fight or flight" reactions in response to such things as terror, hate, lust and so-on....
Which of these endocrine glands produce hormones that work with the sympathetic nervous system and cause the fight or flight response?
adrenal glands!
What part of the nervous system stimulates the arrector pili muscles and give you goosebumps?
Each arrector pili is composed of a bundle of smooth muscle fibres which attach to several follicles (a follicular unit), and is innervated by the sympathetic branch of the autonomic nervous system. The contraction of the muscle is therefore involuntary - stresses such as cold, fear etc. may stimulate the sympathetic nervous system and thus cause contraction, but the muscle is not under conscious control.
What are the causes of nervous system to your body?
The cause of your nervous system is genetics.
Does using heroin cause hyperglycemia?
Yes. Heroin can cause hyperglycemia because heroin stimulates the sympathetic branch of the nervous system. This branch is responsible for the constricted pupils and fast heart rate you see in heroin overdose. The high blood sugar is due to the increased demands of the cells because the metabolic rate of the cells is increased. Therefore, the sympathetic nervous system stimulates the release of stored sugar from the liver and it enters the blood stream. This causes the hyperglycemia.
What are the ailment of the nervous system?
it can cause paralysis,or losse of control over voluntary movements
What stimulates breathing?
Orexin stimulates breathing via medullary and spinal pathways
Does heat cause vasoconstriction?
Yes
What is the most common cause of prolonged vasoconstriction in the kidney?
High blood pressure is the most common cause of prolonged vasoconstriction in the kidney.
When your pupils dialate does that mean you have a fast heartbeat?
No, although the two may both be signs of sympathetic nervous system stimulation, so often they're seen at the same time, though there is no cause-and-effect relationship.
