Diameters, area, and form of the optic nerve scleral canal were measured in 107 freshly enucleated, unfixed, human donor eyes. Macrophotographs of the sectioned posterior fundus pole were provided with a millimeter scale and evaluated planimetrically. They revealed a surprising variation: area: 2.59 ± 0.72 mm2 (minimum 0.68 mm2, maximum 4.42 mm2); minimal diameter: 1.67 ± 0.72 mm; maximal diameter: 1.92 ± 0.32 mm. The mean form factor was 0.92 ± 0.11 and the quotient of minimal to maximal diameter 0.86 ± 0.11, indicating a slightly oval nearly round form. The coefficients of variation of the method's reproducibility were 0.005 for intraobserver and 0.02 for interobserver determination. The size values of these optic nerve scleral canals were not significantly (Wilcoxon-Mann-Whitney test) different from than those of 100 unselected optic discs that had been determined intravitally using Littmann's method. This indicates the reliability of Littmann's method for the intravital measurement of the optic nerve head in absolute dimensions.
The soma (body) of a neuron can be from about 5 to 100 micrometers in diameter(wikipedia). If you include the dendrites and axons sizes can be even more variable. For example there is a single nerve cell which runs from the bottom of your spinal cord to your toes.
There are two ways of measuring the human nervous system. In terms of its spatial measurement, it extends to every part of the body, so it is as large as a human body. In terms of mass, it adds up to about 3 pounds.
it is about 4 microns to 100 microns in diameter
Diameter = 0.001mm to 1mm and length = fraction of a inch to several feet
Smaller than the tip of a push pin. You could probably fit well over 20 on the tip of one push pin.
cells are microscopic
The longest cells are neurons (nerve cells) with a length of 90cm-100cm linking the central nervous system (brain and spinal cord) to other parts of the body.
Nerve cell
Human nerve cells allows information from the brain to be carried to other parts of the body BUT plant guard cells allows the amount of oxygen to enter the stomata.
The slowest dividing cells in the human body are the nerve cells. Nerve cells generate and conduct electrical impulses, allowing communication between the central nervous system and the rest of the body.
All human cells have a nucleus and organelles
The Longest cell in the human body is the nerve cell.
Nerve cell is the longest cell in human body.
big
Human nerve cells are eukaryotic cells, just like every other human cell.
Nerve cell is the longest cell in human body.
Human cells also include human nerve cell. The connections are from the nerve cell to the other cells by way of extensions called dendrites.
46 chromosomes
5 to 100 micrometers
The longest cells are neurons (nerve cells) with a length of 90cm-100cm linking the central nervous system (brain and spinal cord) to other parts of the body.
Nerve cell
i am not sure but i think both are specialised cells.
Electric stimulants which trigger the cells themselves