Extrinsic Tongue Muscles | Anatomy and Functions [O, I, N, A]

The video tutorial explains the extrinsic muscles of the tongue, including geniohyoid, genioglossus, hyo glossus, styloglossus, and palatoglossus. It details their origins, insertions, actions, and innervations. The tutorial also covers the impact of a hypoglossal nerve lesion on tongue movement, highlighting how it affects muscle function and tongue deviation.

What is the role of the hyoid bone in the function of the extrinsic tongue muscles?

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How does the action of the styloglossus muscle differ from that of the hyoid muscle?

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Describe the action of the palatoglossus muscle.

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What happens to the tongue when there is a lesion of the hypoglossal nerve?

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