Each push in and out of the base of the stapes must cause a movement of the fluid, or a pressure, in the scalae as a whole.
The stapes forms a close connection with the hammer and the incus.
The stapes apparently reaches the quadrate, and could therefore serve in hyostylic suspension of the upper jaw.
The limbs of the stapes are narrow, weak, and abruptly curved.
The posterior and anterior crus of the stapes are bowed, and the muscular process is either absent or much reduced.
Priodon has a lower type of stapes than Dasypus and Tatusia.
With a fine hook the long leg of the incus is dislocated forwards or backwards from the stapes.
Even then it may be anatomically impossible to see the stapes.
There may also be very minute transverse movements at the base of the stapes.
The base of the stapes communicates 723 pressures to the utricle.
"stirrup bone in the middle ear," 1660s, from Modern Latin (1560s), special use of Medieval Latin stapes "stirrup," probably an alteration of Late Latin stapia, related to stare "to stand" + pedem, accusative of pes "foot" (see foot). So called because the bone is shaped like a stirrup. This was an invented Medieval Latin word for "stirrup," for which there was no classical Latin word, as the ancients did not use stirrups.
stapes sta·pes (stā'pēz)
n. pl. stapes or sta·pe·des (stā'pĭ-dēz')
The smallest of the three auditory ossicles, whose base fits into the oval window and whose head is articulated with the lenticular process of the long limb of the incus. Also called stirrup.