Quadrate bone

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Related to Quadrate bone: Hyomandibular, quadrate muscle
(Anat.) a bone between the base of the lower jaw and the skull in most vertebrates below the mammals. In reptiles and birds it articulates the lower jaw with the skull; in mammals it is represented by the malleus or incus.

See also: Quadrate

References in periodicals archive ?
13) Vibrations of a tympanum (recent evidence suggests that the tympanum was supported by the reflected lamina of the angular bone) were conducted through the articular bone in the lower jaw, through the quadrate bone in the upper jaw, through the stapes, and into the uric capsule.