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Muscles which help in respiration are...

Muscles which help in respiration are

A

Sternum and petrohyal

B

Sternohyal and petrohyal

C

Jugal and tendons

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
B
Sternohyal muscles arise from the coracoid and clavicle or sternum and attached to the lower surface of the hyoid apparatus located in the floor of buccal cavity.
Petrohyal muscles are attachés on one end with the squamosal bone above and on the side with the upper surface of hyoid apparatus.
On contraction, the sternohyoid muscles the floor of the buccal cavity along with hyoid is lowered increasing the volume of the buccal cavity.
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