vestibular mechanoreceptors

ves·tib·u·lar mech·a·no·re·cep·tors

(ves-tib'yū-lăr mek'ă-nō-rĕ-sep'tŏrz)
The semicircular canals and the otolith organs (utricle and saccule), which are organic transducers that respond to specific physical factors (e.g., angular acceleration or linear acceleration).