"which are characteristics of the extrinsic muscles of the larynx"

The characteristics are stabilize larynx it also help with swallowing and this originate in hyoid bone or sternum. The functions of the larynx is it blocks food and drinks from entering airways and produces sound for speech, this serves as a passageway for air. 

the elements of art are the visual tools that the artist uses to create a composition. these are line, shape, color, value, form, texture, and space.

the principles of art and design are balance, contrast, emphasis, movement, pattern, rhythm, and unity/variety.