Purpose: To determine whether patients with congenital stationary night blindness (CSNB) have electrophysiological evidence of optic nerve fibre mis-routing similar to that found in patients with ocular albinism (OA). Method: We recorded the Pattern Onset VEP using a protocol optimised to detect mis...
3)Axon:It is a single,very long cylindrical fibre arising from cell body. Theyconduct nerve impulses away from cell body. They have an insulating and protective sheath of myelin around it. How does an axon work? An axon, or nerve fiber, is a long slender projection of a nerve cell, or...
Conclusions: Retinal nerve fibre layer thickness measurements were found to vary with refractive status and axial length of the eye. Effect of refractive errors/axial length on peripapillary retinal nerve fibre layer thickness (RNFL) measured by Topcon SD-OCT Mean IOP, refractive error, and axial ...
2. Cell Body has a nucleus, Golgi body, endoplasmic reticulum, mitochondria, and other components. 3. Axon is a tube-like structure that carries electrical impulse from the cell body to the axon terminals which passes the impulse to another neuron. ...
There are five events in a reflex arc: (1) a sensory receptor responds to a specific stimulus by sending a nerve impulse, (2) the nerve impulse propagates from the sensory receptor to the axon of the sensory neuron to the axon terminal, (3) the nerve impulse re...
Two kinds of endings show a neuromuscular contact approximately 150–350 wide and consisting of three layers but without a basement membrane between the membranes of the axon and the muscle fibre. 2. Three kinds of endings are characterised by a basement membrane and a synaptic cleft of about ...
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He postulated that molecules released by epidermal cells might deflect away nerve fibre growth trajectory, oppositely to those which were found to attract the axons, namely at that time, the neurotrophic factor NGF [6]. From these pioneer findings, repulsive forces have been demonstrated to play ...
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(CMAP) rundown over four consecutive stimulations in the GAS of 9-month-old TSCmKO mice and littermate controls at stimulation frequencies between 3 and 15 Hz. Nerve- relative to muscle-stimulated peak tetanic force in SOL nerve-muscle preparations in (n) 10- (n = 5) and 28–30...