What is the only bone of the body that does not articulate directly with any other bone?

mandible
hyoid bone
sphenoid bone
stirrup
The hyoid bone is a horseshoe-shaped bone situated in the anterior midline of the neck between the chin and the thyroid cartilage. At rest, it lies at the level of the base of the mandible in the front and the third cervical vertebra behind. The primary function of the hyoid bone is to serve as an anchoring structure for the tongue.
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mandible
hyoid bone
sphenoid bone
stirrup
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flagPakistan
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90%
4%
4%
43
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66%
11%
5%
18
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63%
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63%
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13%
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61%
5%
19%
52
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60%
0%
10%
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58%
4%
24%
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14%
54%
14%
13%
257
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13%
53%
20%
8%
172
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50%
26%
10%
30
flagGhana
20%
50%
20%
10%
10
flagPoland
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49%
7%
27%
6268
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46%
4%
25%
494
flagAustria
20%
46%
4%
27%
96
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9%
45%
18%
27%
11
flagthe United Kingdom
16%
42%
7%
31%
192
flagSwitzerland
13%
42%
2%
42%
45
flagCanada
7%
38%
11%
40%
42
flagthe United Arab Emirates
9%
36%
9%
27%
11
flagNigeria
26%
34%
19%
19%
26