Because the A-delta fiber is thicker than the C fiber, and is thinly sheathed in an electrically insulating material ( myelin ), it carries its signal faster ( 5 – 30 m / s ) than the unmyelinated C fiber ( 0. 5 – 2 m / s ).

Grey matter ( or gray matter ) is a major component of the central nervous system, consisting of neuronal cell bodies, neuropil ( dendrites and unmyelinated axons ), glial cells ( astroglia and oligodendrocytes ) and capillaries.

In contrast to gray matter that is formed from neurons and their unmyelinated fibers, the white matter below them is formed predominantly by myelinated axons interconnecting neurons in different regions of the cerebral cortex with each other and neurons in other parts of the central nervous system.

Neuropil, sometimes referred to as " neuropile ," is a broad term defined as any area in the nervous system composed of mostly unmyelinated axons, dendrites and glial cell processes that forms a synaptically dense region containing a relatively low number of cell bodies.

In general, touch / position information is carried by myelinated ( fast-conducting ) nerve fibers, whereas pain / temperature information is carried by unmyelinated ( slow-conducting ) nerve fibers.

In a typical unmyelinated axon, the action potential is conducted at a rate of about 5 meters per second, compared to a myelinated human neural fiber which conducts at around 120 meters per second.

If most or all of the axons lack myelin sheaths ( i. e., are unmyelinated ), then the pathway will appear a darker beige color, which is generally called grey ( British English, or gray in American English ).

It is now thought that the earliest site of action potential initiation is found just adjacent, in the initial ( unmyelinated ) segment of the axon.

Inner hair cell nerve fibers are also very heavily myelinated, which is in contrast to the unmyelinated outer hair cell nerve fibers.

This highly asymmetric distribution of voltage-gated sodium and potassium channels is in striking contrast to their diffuse distribution in unmyelinated fibers .< ref > Black, J. A., Sontheimer, H., Oh, Y., and Waxman, S. G. ( 1995 ).

However, it is interesting to note that while most peripherin knockout mice displayed normal neuron growth, its absence did affect development of a subset of unmyelinated sensory axons.

In the center of the corpuscle is the inner bulb, a fluid-filled cavity with a single afferent unmyelinated nerve ending.

It is one of the ironic quirks of history that the viability and usefulness of nationalism and the territorial state are rapidly dissipating at precisely the time that the nation-state attained its highest number ( approximately 100 ).

What Krim ignores, in his contempt for history and for accuracy, is that these magazines, Partisan foremost, brought about a genuine revolution in the American mind from the mid-thirties to approximately 1950.

Bostitch, Inc. is approximately half way through a 10-year exemption of their real estate tax.

At a rate of $3.22 an hour he is now earning approximately $580 a month.

In the case of taxpaying corporate stockholders, the measure would be the lesser of the fair market value of the shares or Du Pont's tax basis for them, which is approximately $2.09 per share.

The area available at Heywood is approximately three times the size of the former Rochdale and Manchester locations.

The expectation is that first-level supervisors will be selected in approximately equal numbers from the second and third engineering level, with very few coming from the first level.

In free-burning electric arcs, for instance, approximately 90% of the total arc power is transferred to the anode giving rise to local heat fluxes in excess of Af as measured by the authors -- the exact value depending on the arc atmosphere.

Each specimen is approximately 16 inches square.

Thus, the efficiency **yt couplers is given by -- Af or approximately 50 percent each.

The time required for the system to reach a level position is approximately inversely proportional to the servo loop gain.

In addition, the cutoff frequency for input accelerations is approximately proportional to the servo loop gain ; ;

Dartmouth is numerically still a small college today, with approximately twenty-nine hundred undergraduates.

The fire ant is thought to infest approximately two million acres of land in Georgia, attacking crops, young wildlife and livestock and can be a serious health menace to humans who are allergic to its venom, Blasingame said.

The total number of known amphibian species is approximately 7, 000, of which nearly 90 % are frogs.

The numbers of species cited above follow Frost and the total number of known amphibian species is approximately 7, 000, of which nearly 90 % are frogs.

The number of neutrons, N, is known as the neutron number of the atom ; thus, A = Z + N. Since protons and neutrons have approximately the same mass ( and the mass of the electrons is negligible for many purposes ), and the mass defect is usually very small compared to the mass, the atomic mass of an atom is roughly equal to A.

Covering approximately 22 % of Earth's surface, the Atlantic is second in size to the Pacific.

In contrast, the largest North American community north of the circle, Sisimiut ( Greenland ), has approximately 5, 000 inhabitants, while between Canada and the USA, Barrow, Alaska is the largest settlement with circa 4, 000 inhabitants.

Rovaniemi ( in Finland ), which lies slightly south of the line, has a population of approximately 58, 000, and is the largest settlement in the immediate vicinity of the Arctic Circle.

Since a coulomb is approximately equal to elementary charges ( such as electrons ), one ampere is approximately equivalent to elementary charges moving past a boundary in one second, or the reciprocal of the value of the elementary charges in coulombs.

The laser beam, capable of cut widths under 25μm, is controlled by high-precision, galvo-scanning mirrors with repeat accuracy of +/- 4 μm.

The other variables include the dancer who is to perform the movement and the length of time he is to take in its performance.

This is less than the length of a jet runway -- well within the circle of destruction.

the athlete of by-gone years who wears a size 46 suit and puffs when he has finished a sentence of any length then, it is time to break it up and move on.

Some critics say that the length of stay in a hospital is too long.

Chuck a length of 1/8'' '' dia. drill rod into a drill press or some similar turning device and while it is rotating file the end square and then file a slight taper 1/8'' '' long.

The cross-sectional area of the cylinders is determined and then the volume of the individual cylinders is computed by multiplying the area by the stroke length, which is the equivalent of the length of the cylinders.

otherwise, you'll have to spend a few minutes to either attach a suitable spring clip somewhere on the press head or fit the key to a length of light chain and fasten to the bottom of the motor mount so that the key is out of the way when not in use.

The whole length of Essex bridge is one thousand and thirty feet and its breadth thirty-four.

Fortunately, although only a few years ago they held the student at arms length, today the business houses welcome the opportunity to aid the student, not only from an increased sense of community responsibility but also from the realization that the student of today is the interior designer of tomorrow -- that the student already is `` in the trade ''.

Although the play does show a certain structural amateurishness ( there are eleven acts varying in length from twenty-five seconds to an hour and a half ), the statement it makes concerning the ceaseless yearning and searching of youth is profound and worthy of our attention.

Mars has been observed twice at about 3-cm wave length, and the intensity of the observed radiation is in reasonable agreement with the thermal radiation which might be predicted on the basis of the known temperature of Mars.

Such an instrument is expected to be especially useful if it could be used to measure the elasticity of heavy pastes such as printing inks, paints, adhesives, molten plastics, and bread dough, for the elasticity is related to those various properties termed `` length '', `` shortness '', `` spinnability '', etc., which are usually judged by subjective methods at present.

A number of semiempirical estimates by various workers lead to the conclusion that the Af bond becomes symmetric when the Af bond length is about 2.4 to 2.5 A, but aside from the possible example of nickel dimethylglyoxime there have been no convincing reports of symmetric Af bonds.

Data on the former are scanty, but there can be little doubt that the latter is sometimes born at a length greater than that of any of the others, thereby lending support to the belief that the anaconda does, indeed, attain the greatest length.

For four of the six ( the anaconda and the amethystine python cannot be included for lack of data ) there is also a correlation between size at maturity and maximum length, the boa constrictor being the smallest and the Indian python the next in size at the former stage.

The following information on snakes varying greatly in size ( but all with less than a 10-foot maximum ) shows, when considered with the foregoing, that there is probably no correlation between the length of a snake and the time required for it to mature.