| 单词 | petrohyoid | 
| 释义 | > as lemmaspetrohyoid   petrohyoid adj. and n.  Brit.  , U.S.  ΚΠ 1875    T. H. Huxley  & H. N. Martin Course Elem. Biol. 		(1877)	 243  				The hyoid bone..from it a slip of muscle (petrohyoid) will be seen passing up towards the occipital region of the skull. 1939    T. L. Green Pract. Animal Biol.  i. 139  				Find the petro-hyoid which extends from the hyoid outwards to the ‘petrosal’ region beside the tympanum. It is fan-shaped and consists of four bands of muscle tissue. 1969    Science 14 Mar. 1223/3  				The petrohyoid muscles fire during ventilation. < as lemmas  | 
	
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