Cupula & Macula

Coloring Image

Histological sections of vestibular sensory structures stained with H&E. The left image shows the semicircular canal ampulla with a cupula projecting into the lumen. Hair cells with stereocilia and a single kinocilium are visible, supported by supporting cells. Vestibular nerve axons extend from the base of the sensory epithelium. The right image shows the macula of the utricle and saccule, featuring hair cells with stereocilia and kinocilium embedded in an otolithic membrane containing otoliths. Vestibular nerve axons are present beneath the epithelium. The image illustrates sensory structures responsible for detecting angular and linear acceleration.

Histology Image

University of Michigan, M. Hortsch

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