Which Statement Differentiates Between the Intrinsic and Extrinsic Muscles of the Larynx,and

question 127

Multiple Choice

Which statement differentiates between the intrinsic and extrinsic muscles of the larynx,and explains which one moves the larynx?

• A) Intrinsic muscles have both their origin and insertion on the larynx, whereas extrinsic muscles insert on the larynx but have their origin on some other structure; neither muscle moves nor displaces the larynx as a whole.
• B) Intrinsic muscles have both their origin and insertion on the larynx, whereas extrinsic muscles insert on the larynx but have their origin on some other structure; contraction of the extrinsic muscles actually moves or displaces the larynx as a whole.
• C) Intrinsic muscles have both their origin and insertion on the larynx, whereas extrinsic muscles insert on the larynx but have their origin on some other structure; contraction of the intrinsic muscles actually moves or displaces the larynx as a whole.
• D) Intrinsic muscles have both their origin and insertion outside of the larynx, whereas extrinsic muscles insert on the larynx but have their origin and insertions on the larynx and actually move or displace the larynx as a whole.

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