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Message: <blockquote data-quote="diamonddrago" data-source="post: 7482354" data-attributes="member: 243828"><img src="/styles/default/xenforo/smilies/default/lol.gif"  class="smilie" loading="lazy" alt=":lol:" title="LOL    :lol:" data-shortname=":lol:" />We have shown that cultured mouse neural crest (NC) cells exhibit  transient increases in intracellular calcium. Up to 50% of the cultured  NC-derived cells exhibited calcium transients during the period of  neuronal differentiation. As neurogenic activity declined, so did the  percentage of active NC-derived cells and their calcium spiking  frequency.know how to read?.....what are bones made of?....Mapping of all skeletal and muscle connective                      tissues developing from these small regions  revealed several novel features of the cranial neural crest. First, the  mandibular                      arch skeleton has a composite origin in which the  proximal elements are r1+r2 derived, whereas more distal ones are  exclusively                      midbrain derived. The most proximal region of the  lower jaw is derived from second arch (r4) NC. Second, both the lower  jaw                      and tongue skeleton display an organisation which  precisely reflects the rostrocaudal order of segmental crest deployment                      from the embryonic hindbrain. </blockquote>

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