The nodes of Ranvier are specialized axonal segments that lack myelin, allowing the saltatory conduction of action potentials. Important progress has been made in unravelling the fine structure of the ...
Researchers have achieved patch-clamp studies of an elusive part of mammalian myelinated nerves called the Nodes of Ranvier. At the nodes, they found unexpected potassium channels that give the ...
How does our nervous system operate so quickly and efficiently? The answer lies in a membranous structure called myelin. Aa Aa Aa All our activities — eating, walking, talking — are controlled by our ...
Yes, when someone pulls your hair – if you have enough hair that someone can pull it – it hurts. But the truth of why that is, and some of the how much and some of the how, has only recently become ...
The Cool Down on MSN
Researchers issue warning about invisible threat that could impact newborns' brain development: 'Further steps are needed'
"We cannot slacken our efforts." Researchers issue warning about invisible threat that could impact newborns' brain ...
The central nervous system is made up of two types of tissue: the grey matter and the white matter. The grey matter is mainly composed of neuronal cell bodies and unmyelinated axons. Axons are the ...
Historically, gray matter was typically considered the brain’s organ grinder, and white matter was just the monkey. But in recent years, it has become clear that the monkey is just as important as its ...
The medical mystery in the January 3 issue 1 involved fundus photographs (Figure 1) showing a yellow cloud surrounding the optic disks of a 42-year-old man. His visual acuity and the examination of ...
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