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Dictionary » S » Stimulation

Stimulation

Stimulation

1. The act of stimulating, or the state of being stimulated.

2. (Science: physiology) The irritating action of various agents (stimuli) on muscles, nerves, or a sensory end organ, by which activity is evoked; especially, the nervous impulse produced by various agents on nerves, or a sensory end organ, by which the part connected with the nerve is thrown into a state of activity; irritation.

Origin: L. Stimulatio: cf. F. Stimulation. Any stimulating information or event; acts to arouse action.


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Re: Regulation of a heartbeat

Hello guyz Conditions which lead to sympathetic stimulation like lead to increase heart rate and force of contraction Conditions that lead to parasympathetic stimulation like lead to decrease heart rate but have nothing to do with contractility as ...

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by sanjidcapa
Tue May 05, 2009 9:18 am
 
Forum: Physiology
Topic: Regulation of a heartbeat
Replies: 2
Views: 1363

Re: Vagus Nerve

... (parasympathetic) and by the sympathetic nerves. The vagus nerve is the cardiac inhibitor, and the sympathetic nerves are the cardiac excitors. Stimulation of the vagus nerve depresses the rate of impulse formation and atrial contractility and thereby reduces cardiac output and slows the rate ...

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by sanjidcapa
Tue May 05, 2009 9:15 am
 
Forum: Human Biology
Topic: Vagus Nerve
Replies: 16
Views: 39456

Regulation of a heartbeat

... innervation: First from sympathetic nervous system (Spinal nerve T1-4) Second from parasympathetic nervous system(Cranial nerve CN-X) Sympathetic stimulation lead to increase rate of SA impulses so increase heart rate Parasympathetic stimulation lead decrease rate of SA impulses so decrease heart ...

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by MohammedAmer
Wed Apr 22, 2009 4:45 pm
 
Forum: Physiology
Topic: Regulation of a heartbeat
Replies: 2
Views: 1363

Use of diuretics

... of a #2 but related to alcohol): Also, would use of a stimulant help reduce some of the alcohol's depressant effects? If both diuresis and CNS stimulation both help, then use of Ephedrine would surely be helpful.. 2. This led me to think: let Alice consume an anti-diuretic substance such as ...

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by drunkard
Fri Apr 03, 2009 1:41 pm
 
Forum: Physiology
Topic: Use of diuretics
Replies: 3
Views: 995

peripheral nervous system

The hot girl example indeed supports what I just said. I can't control the wish so my heart receives sympathetic stimulation. This is a nice example to the activity of the autonomic nervous system. I'm more confused about involuntary skeletal muscle contraction during withdrawal ...

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by kk
Tue Mar 24, 2009 11:40 am
 
Forum: Physiology
Topic: peripheral nervous system
Replies: 3
Views: 1602
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