Question

multiple choice question
a slightly enlarged area of the semicircular ducts that responds to head rotations is the _______.
ampulla
utricle
saccule

Explanation:

The ampulla is the slightly enlarged area of the semicircular ducts that responds to head - rotations. The utricle and saccule are parts of the otolith organs and are involved in linear acceleration and static equilibrium, not specifically head - rotations in the context of semicircular ducts.

Answer:

ampulla