Final answer:
The anatomical structures associated with dynamic equilibrium are the semicircular canals and the saccule. The semicircular canals sense head position while the saccule detects linear movements.
Step-by-step explanation:
The anatomical structures associated with dynamic equilibrium are the semicircular canals and the saccule. The semicircular canals, which are colored purple in the image provided, contain liquid and sense head position to monitor balance. The saccule is a structure in the vestibular labyrinth of the inner ear that helps detect linear movements and maintain dynamic equilibrium.