Lower tongue

The underside of a lemur's tongue shows the sublingua with a fringed tip

The hypoglossal ( Sublingua ) is a keratinized and sheet-like "second tongue " at the bottom of the movable part of the tongue comprising a fringed top. It is trained in marsupials as well as some primates ( Koboldmakis , wet-nosed primates ) and pointed squirrels . In contrast to the actual tongue, there are no internal muscles. It is believed that the lower tongue is used to clean the tooth comb after eating. In humans, the sawtooth-like fold ( plica fimbriata ) on the side of the ligament of the tongue is viewed as a rudimentary lower tongue .

Individual evidence

1. ^ Gerhard Mickoleit: Phylogenetic systematics of vertebrates . Verlag F. Pfeil, 2004, ISBN 9783899370447 , p. 529.
2. ^ W. Albrecht et al .: Anatomie. Development history. Physiology. Investigation methods . Volume 1 of the handbook of ear, nose and throat medicine including the border areas . Springer, ISBN 9783642924811 , p. 223.
3. ↑ Wolfgang Dauber: Feneis' picture lexicon of anatomy . Georg Thieme Verlag, 2005, ISBN 9783133301091 , p. 140.