Can I read The pharyngeal jaw apparatus of labrid fishes: A functional morphological perspective on EtoBox?

The pharyngeal jaw apparatus of labrid fishes: A functional morphological perspective by Karel F. Liem; S. Laurie Sanderson is a Environmental Science article available to read on EtoBox.

What is The pharyngeal jaw apparatus of labrid fishes: A functional morphological perspective about?

Among the acanthopterygian fishes, the Labridae possess the most highly integrated and specialized pharyngeal jaw apparatus. The integrated feature involves many osteological components and aspects of muscle form, architecture, composition, and function. The upper jaw articulates by means of a true diarthrosis with the pharyngeal process of the parasphenoid, whereas the lower jaw has established physical contact with the cleithrum. Complex muscle fusions have contributed significantly in the development of a double muscle sling operating the lower jaw. The original levator externus 4 fuses with the central head of the obliquus posterior, whereas the original levator posterior combines with the lateral head of the obliquus posterior as well as with the adductor branchialis 5. During the masticatory cycle, both upper and lower jaws undergo complex movement orbits resulting in shearing and crushing functions. Shearing occurs as the forward moving upper jaw collides with the dorsally held lower jaw. Crushing is effected by an extreme posterodorsal movement of the lower jaw against the retracted upper jaw, thereby establishing full occlusion of the teeth. The specialized morphological a

Who reads The pharyngeal jaw apparatus of labrid fishes: A functional morphological perspective?

Author

Karel F. Liem; S. Laurie Sanderson

Publisher

John Wiley and Sons; Wiley (John Wiley & Sons); John Wiley & Sons Inc.; Wiley (ISSN 0362-2525)

Published

1986

Language

EN

Field

Environmental Science (Physical Sciences)