wht is the work of petrohyal muscles in frog?
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Explanation:
It connects hyoid and sternum when it contracts, the mouth cavity is lowered downwards. The petrohyal muscle lie outside the mouth cavity and the upper and lower ends connect squamosal bone and hyoid respectively. When it contracts, the mouth cavity is pushed upwards.]Oct 14, 2016
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Answer:
The Petrohyal muscles lie outside the mouth cavity and the upper and lower ends connect squamosal bone and hyoid respectively. When it contracts, the mouth cavity is pushed upwards.It connects hyoid and sternum when it contracts, the mouth cavity is lowered downwards.
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