FIG. 9.

Four cross-sections perpendicular to the manubrium top surface are shown (labeled a to d on the malleus model at the top left) for the rest position (middle line) and for pressure loads of +200 daPa (displacement in medial direction) and −200 daPa (in lateral direction). Remark how in gerbil the flat lateral surface of the manubrium is embedded in the TM. Under pressure load, the TM hinged about its attachment to the manubrium and the TM deformation relative to the manubrium can hence be classified as simply supported.