Labrum (arthropod mouthpart)
The labrum (plural Labren or Labra ) is the upper lip of certain arthropods, particularly crustaceans and insects. It represents the front end of the mouthparts dar. It is usually formed as a plate and is unpaired beneath the face ( clypeus ), with which it can be grown in many insects ( Clypeolabrum ). Homology with limb does not exist.
The Latin word labrum " lip ", " edge " is related to Latin labium (see labium ) and with German lip.
- The glenoid labrum is the cartilage lip on the shoulder blade
- The labrum is the cartilage acetabular lip of the acetabulum, see Acetabulum
The Romans called a water basin or bath labrum, see the Greek equivalent Luterion. The word labrum in this case is due to contraction of lavabrum "bathtub " emerged ( wash from Latin lavare ).
Erwin Hentschel, Günther Wagner Zoological Dictionary, Gustav Fischer Verlag, Jena, 1990, ISBN 3-334-00348-5 4th edition.
- Anatomy (eddy lots)