One or more nerve fibres perforate the side of the capsule and lose their medullary sheaths; the axis-cylinders subdivide and end between the tendon fibers in irregular disks or varicosities ( see figure ).
22.
These varicose axons resemble strings of beads with varicosities 0.5 2.0 ? in diameter and 1 to 3 ? in length and separated by inter-varicosity axon 0.1 to 0.2 ? in diameter.
23.
These varicose axons resemble strings of beads with varicosities 0.5 2.0 ? in diameter and 1 to 3 ? in length and separated by inter-varicosity axon 0.1 to 0.2 ? in diameter.
24.
In a more limited operation for varicosities in branches of the saphenous vein, surgeons make a series of small incisions near the lumpy parts, tie off the ends, then use a kind of crochet hook to remove the bad parts.
25.
Analysis of non-noradrenergic / non-cholinergic ( NANC ) transmission at single varicosities or swellings indicates that individual synapses possess different probabilities for the secretion of transmitter as well as different complements of autoreceptors and mixtures of post-junctional receptor subunits.
26.
The post-junctional membrane beneath the varicosity can possess a patch about 1 ?m 2 of purinergic secretosomes that the varicosity possesses, where a secretosome is a complex of syntaxin, synaptotagmin, an N-type calcium channel, and a synaptic vesicle.
27.
The post-junctional membrane beneath the varicosity can possess a patch about 1 ?m 2 of purinergic secretosomes that the varicosity possesses, where a secretosome is a complex of syntaxin, synaptotagmin, an N-type calcium channel, and a synaptic vesicle.
28.
Therefore, even in the presence of highly intermittent noradrenaline release, one would expect the average varicosity in this organ to be within 10 ?m of a released packet of noradrenaline at some time during a five-impulse stimulus train ( excluding the last impulse ).
29.
Using the Golgi method, Giuseppe Magini then studied the mammalian fetal cerebral cortex in 1888, confirming the similar presence of elongated radial cells in the cortex ( also described by K�lliker just before him ), and observing various varicosities or swellings on the radial fibers.
30.
Neurons very often make both a conventional neurotransmitter ( such as soma, dendrites, axonal swellings ( varicosities ) and nerve endings, whereas the small synaptic vesicles are mainly found in clusters at presynaptic locations . Release of the large vesicles and the small vesicles is regulated differently.
