umbo
1
9.9
- noun
- /ˈʌmboʊ/
- Specialized
- We found that the round window was an average of 3.44 mm (± 0.68) from the umbo and was situated at an average angle of 113.2 degrees (± 9.8) from the long process of the malleus.
- distance from the umbo
Examples
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This elevation, or "inverse umbo," is the result of increased height of the foveolar cone outer segments.
Blog text (8) -
A millimeter ruler was used to measure the distance between the umbo and the closest edge of the round window niche.
Academic text (2001) -
Goode et al. used LDI on live patients to describe vibrational patterns of the umbo.
Academic text (1998) -
A vertical myringotomy posterior to the umbo will allow for the proper placement of the vent tube over the round window niche.
Academic text (1999) -
It is important to note that the umbo area of the malleus is covered by the FMT, and therefore the malleus appears a bit shorter in length than reality.
Academic text (1998) -
In an effort to ascertain the precise location of the round window, we examined 25 cadaveric human temporal bones and measured the distance from the umbo to the round window in each sample.
Academic text (2001) -
Figure 6. Average peak-to-peak displacements measured at the tympanic membrane (umbo) of the live human (N=64) and temporal bones (N=29).
Academic text (1998) -
The slippage and phase differences at higher frequencies may contribute to a greater roll-off with frequency in peak-to-peak displacement measurements for the stapes than for the umbo (Figures 11 and 12).
Academic text (1998) -
The umbo of the eardrum is where the malleus bone connects, creating a slight elevation.
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In examining the ear, the doctor pointed out the umbo, noting its importance in sound transmission.
Surface Forms
Etymology
The word umbo comes from Latin umbo, which meant a 'round knob' in the middle of a shield. So the ear umbo is the small rounded spot on the eardrum where a little bone attaches, like a tiny knob.