[dohtml]<div style="font-size: 12pt; color: black; font-family: Times New Roman"><p>I have just read about <font face="Arial" size="2"><b>Schwann cell</b></font>, <font face="Arial" size="2"><b>Schwarzschild radius</b></font>, and <font face="Arial" size="2"><b>scintillation counter</b></font> in the <a href="http://z8.invisionfree.com/DYK/index.php?showtopic=388" target="_blank">Oxford <i>Concise Colour Science Dictionary</i></a>.</p>
<p>Did you know? Schwann cells wrap around a nerve fibre to form a myelin sheath, adjacent cells in the sheath being separated from each other by a node of Ranvier.</p></div>[/dohtml]

[dohtml]<font face="Trebuchet MS" size="3" color="black">
<p>Did you know? Myelinated axons transmit nerve impulses more quickly than unmyelinated fibres. :good:</p></font>[/dohtml]

[dohtml]<div style="font-size: 12pt; color: black; font-family: Comic Sans MS"><p>Did you know? An axon is part of a neurone. ;)</p></div>[/dohtml]

Did you know? Sensory neurones carry impulses from receptors to the central nervous system while motor neurones carry impulses from the central nervous system to effectors. :D

[dohtml]<div style="font-size: 12pt; color: black; font-family: Comic Sans MS"><p>Did you know? Impulses are transmitted between neurones via synapses with the help of neurotransmitters. :D</p></div>[/dohtml]

[dohtml]<font face="Trebuchet MS" size="3" color="black">
<p>Did you know? The neurotransmitter in cholinergic nerve fibres is acetylcholine, which, on its being released into the synaptic cleft, is quickly broken down by the enzyme cholinesterase into choline and ethanoic acid. ^_^</p>
<p>Did you also know? I <small>LOVE</small> biology! :good:</p></font>[/dohtml]

[dohtml]<div style="font-size: 12pt; color: black; font-family: Comic Sans MS"><p>Did you know? Impulses travel across a synaptic cleft from the presynaptic neurone to the postsynaptic neurone. :P</p></div>[/dohtml]

[dohtml]<font face="Trebuchet MS" size="3" color="black">
<p>Did you know? Acetylcholine was first isolated by Otto Loewi in 1920.</p>
<p>This is something I learned from "University Challenge" on Monday 21 March 2005: <a target="_blank" href="http://forums.delphiforums.com/factsforum/messages?msg=1357.1">http:/<wbr>/<wbr>forums.delphiforums.com/<wbr>factsforum/<wbr>messages?msg=1357.1</a>. :good:</p></font>[/dohtml]

[dohtml]<div style="font-size: 12pt; color: black; font-family: Comic Sans MS"><p>Did you know? Loewi shared the 1936 Nobel Prize in Physiology or Medicine with Sir Henry Hallett Dale. This is something I’ve found out from Wikipedia. :P</p></div>[/dohtml]

[dohtml]<font face="Trebuchet MS" size="3" color="black">
<p>Did you know? A mainstay of treatment for Alzheimer’s is a class of drugs called the cholinesterase inhibitors. They work by stopping the breakdown of acetylcholine, an important neurotransmitter associated with memory. But an unwanted effect is that this can also increase a person’s susceptibility to seizures.

However, scientists in Scotland say they may have found what causes some Alzheimer's patients to develop epilepsy – <a target="_blank" href="http://news.bbc.co.uk/2/hi/health/7948465.stm">BBC News</a>.</p></font>[/dohtml]