I also could see that he was not yet showing the jaw and tongue muscle skills needed to safely manage these foods. (candokiddo.com)
This use of the tongue helps to lay down patterns of mouth and tongue muscle use which are helpful in the development of normal speech patterns. (breastfeeding-babies.com)
A number of tongue muscles overlap so extensively, for example, that they might best be treated as a single entity. (sciencemag.org)