The plan, the intended victim, the motivation, and other aspects of the threat are masked or equivocal:  1 If I wanted to, I could kill everyone at this school!. While violence is implied, the threat is phrased tentatively.  2 If I wanted toâand suggests that a violent act COULD occur, not that it WILL occur.
The optic nerve is composed of retinal ganglion cell axons and glial cells. Each human optic nerve contains between 770,000 and 1.7 million nerve fibers, which are axons of the retinal ganglion cells of one retina.In the fovea, which has high acuity, these ganglion cells connect to as few as 5 photoreceptor cells; in other areas of retina, they connect to many thousand photoreceptors.ach human optic nerve contains between 770,000 and 1.7 million nerve fibers, which are axons of the retinal ganglion cells of one retina.
A nerve fiber may be myelinated and/or unmyelinated. In the central nervous system (CNS), myelin is produced by oligodendroglia cells. Schwann cells form myelin in the peripheral nervous system (PNS). Schwann cells can also make a thin covering for an axon which does not consist of myelin (in the PNS).A peripheral nerve fiber consists of an axon, myelin sheath, Schwann cells and its endoneurium.There are no endoneurium and Schwann cells in the central nervous system.or example, the olfactory nerve fibers are short and without myelin, but the optic nerve fibers are myelinated (the olfactory and optic nerves are considered as a parts of the CNS, while other cranial nerves are a component of the PNS). A bundle of nerve fibers constitutes a tract in the central nervous system.