Question

practice it
involved in sensing changes in the direction and movement of the head
semicircular waterways
semicircular estuaries
semicircular drainages
semicircular canals
semicircular docks

Explanation:

The semicircular canals are part of the inner ear and are responsible for detecting rotational movements of the head. They play a crucial role in balance and spatial orientation. The other options (semicircular waterways, estuaries, drainages, docks) are not anatomical structures related to sensing head movement.

Answer:

semicircular canals