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Nerve

nerve

1. (Science: anatomy) One of the whitish and elastic bundles of fibres, with the accompanying tissues, which transmit nervous impulses between nerve centers and various parts of the animal body.

An ordinary nerve is made up of several bundles of nerve fibres, each bundle inclosed in a special sheath (the perineurium) and all bound together in a connective tissue sheath and framework (the epineurium) containing blood vessels and lymphatics.

2. A sinew or a tendon.

3. Physical force or steadiness; muscular power and control; constitutional vigor. he led me on to mightiest deeds, Above the nerve of mortal arm. (milton)

4. Steadiness and firmness of mind; self-command in personal danger, or under suffering; unshaken courage and endurance; coolness; pluck; resolution.

5. Audacity; assurance.

6. (Science: botany) One of the principal fibrovascular bundles or ribs of a leaf, especially when these extend straight from the base or the midrib of the leaf.

7. (Science: zoology) One of the nervures, or veins, in the wings of insects.

(Science: anatomy) nerve cell, the operation of stretching a nerve in order to [[remedy 555 ]] diseases such as tetanus, which are supposed to be influenced by the condition of the nerve or its connections.

Origin: OE. Nerfe, F. Nerf, L. Nervus, akin to Gr. Sinew, nerve; cf. String, bowstring; perh. Akin to E. Needle. Cf. Neuralgia. The courage to carry on; he kept fighting on pure spunk; you haven't got the heart for baseball.


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Does other animals have faster nerve speeds?

The speed of nerve transmission depends on the size of the nerve axon, the length of it and whether it is effectively insulated by myelin. There are a vast number of different kinds of neurons in each animal, and for some there ...

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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: 306

Does other animals have faster nerve speeds?

i was thinking, though animals do not have a long chain of thought (ie, stimulus -> brain ->memory -> action); would they have faster nerves speeds or brain speeds, if they had faster brains with low capacity; and if fast enough (relativity) then would they hear sound in a lower frequency? ...

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by 1832vin
Wed Feb 05, 2014 9:39 pm
 
Forum: General Discussion
Topic: Does other animals have faster nerve speeds?
Replies: 1
Views: 306

Action potentials of an earthworm going negative first

... called audacity to record the action potentials. A bit more information on the earthworm if it at all influences this is that they have 3 main nerve cords where all the nerves bundles are held, 2 of them carrying the signals down the worm and the other transmitting them to the front. Thanks ...

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by IsDolan
Mon Jan 20, 2014 3:28 am
 
Forum: General Discussion
Topic: Action potentials of an earthworm going negative first
Replies: 2
Views: 373

Human Collembola Infestations

... in the morning 10mg. It took a month but I finally don't feel a thing. He explained that I had a bad reaction to something. I never knew that the nerve endings under my skin can make me feel like I have bugs jumping and crawling on me. He said we have nerves all under our skin and when they get ...

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by sunshine123
Mon Jan 13, 2014 6:50 pm
 
Forum: Human Biology
Topic: Human Collembola Infestations
Replies: 40
Views: 91352

Human Collembola Infestations

Well, back from the allergist and he said that we both have something wrong with the nerve endings and told us to take zyrtec 10mg allergy once at night for two weeks and if we don't feel better we have to have further testing. My god this better work.

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by sunshine123
Fri Dec 27, 2013 11:37 am
 
Forum: Human Biology
Topic: Human Collembola Infestations
Replies: 40
Views: 91352
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