Which statement concerning gravity detection in humans is true?
A) Statoliths are pulled down by gravity, stimulating hair cells of the statocysts.
B) Otoliths are pulled down by gravity onto stereocilia, stimulating nerve impulses.
C) Gravity moves the cupula, causing hair cells of the lateral line organs to bend.
D) Gravity pulls on the hair cells of the basilar membrane, stimulating nerve impulses.
E) Gravity moves perilymph over the hair cells of the tectorial membrane.

Question

Quizplus · Accepted Answer

Otoliths, small crystals in the vestibular system of the inner ear, are indeed pulled down by gravity onto hair-like structures called stereocilia. This movement stimulates nerve impulses that contribute to our sense of balance and spatial orientation, helping the brain to detect changes in head position relative to gravity.

Which Statement Concerning Gravity Detection in Humans Is True