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Impulses

Impulse

1. The act of impelling, or driving onward with sudden force; impulsion; especially, force so communicated as to produced motion suddenly, or immediately. All spontaneous animal motion is performed by mechanical impulse. (s. Clarke)

2. The effect of an impelling force; motion produced by a sudden or momentary force.

3. (Science: mechanics) The action of a force during a very small interval of time; the effect of such action; as, the impulse of a sudden blow upon a hard elastic body.

4. A mental force which simply and directly urges to action; hasty inclination; sudden motive; momentary or transient influence of appetite or passion; propension; incitement; as, a man of good impulses; passion often gives a violent impulse to the will. These were my natural impulses for the undertaking. (Dryden)

Synonym: force, incentive, influence, motive, feeling, incitement, instigation.

Origin: L. Impulsus, fr. Impellere. See Impel.


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Does other animals have faster nerve speeds?

... relative to nerve speeds. Things like "hearing" and "seeing" are the brain interpreting messages. Totally different nerve impulses may have the same effect when interpreted by the brain. I would therefore guess that how you would perceive these things would entirely depend ...

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by Babybel56
Fri Feb 28, 2014 8:55 am
 
Forum: General Discussion
Topic: Does other animals have faster nerve speeds?
Replies: 1
Views: 1277

Why do neurones only have one axon?

... called nodes of ranvier where diffusion of ions can occur. If we had lots of axons there would be loads of gaps and the action potentials or nerve impulses would become reduced and would probably not transmit a signal strong enough to trigger a response. It is and interesting idea but i think one ...

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by Drredfrizzle
Sun Nov 11, 2012 7:46 pm
 
Forum: Human Biology
Topic: Why do neurones only have one axon?
Replies: 1
Views: 2469

Why do neurones only have one axon?

I have just learnt about neurones. I wonder why neurones have only one axon. Can they transmit nerve impulses faster and more rapidly when they have more axons? Does having more axons help in coordination? Could anyone tell me why neurons have only one axons? Thanks in advance.

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by startanewww
Thu Sep 27, 2012 11:39 am
 
Forum: Human Biology
Topic: Why do neurones only have one axon?
Replies: 1
Views: 2469

To touch another body trough own skin..:)

... with the feeling of environmental pulses. They wants to feel just pulses, without analysis of difficult "secret" space. One of those impulses - humans conclusion (OR - PREPARING TO GET THIS CONCLUSION) "understood." Right handed people have a state of such conclusion, as ...

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by Brandon888
Fri Jun 15, 2012 9:09 am
 
Forum: Evolution
Topic: To touch another body trough own skin..:)
Replies: 0
Views: 1551

Neurons, Cocaine, and Shingles

... 2 and 3 c) 1 and 3 d) 1,2, and 3 3. Shingles is caused by Herpes Zoster infection of the dorsal root ganglia. This disease would affect a) Motor impulses moving into the spinal cord b) Motor impulses moving out of the spinal cord c) Sensory impulses moving out of the spinal cord d) Sensory impulses ...

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by homeworkdisaster
Sun Jun 10, 2012 8:11 pm
 
Forum: Human Biology
Topic: Neurons, Cocaine, and Shingles
Replies: 4
Views: 4112
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