Which of the following muscles move the lower jaw, tongue and the head backward?

Abductor

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Retractor

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Proctor

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All of the above

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Solution

The correct option is B Retractor
A muscle that draws a body part backward is called Retractor.
For example, The horizontal fibers of the temporalis muscle serve to retract the mandible(lower jaw).
Hence retractor muscles move the lower jaw, tongue and the head backward.
So,the correct answer is 'Retractor'.

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Question 2

Which of the following joints is immovable?
(a) Shoulder and arm
(b) Knee and joint
(c) Upper jaw and skull
(d) Lower jaw and upper jaw

Which of the following organ is made up of in voluntry muscles

A. Heart b. Finger

C. Thumb d. Tongue

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