What is crista ampullaris?

The crista ampullaris is a sensory organ located in the ampulla of each of the three semicircular canals within the vestibular system of the inner ear. It plays a crucial role in the body's sense of balance and spatial orientation.

The crista ampullaris is made up of hair cells and supporting cells, which are surrounded by a gel-like substance called the cupula. When the head is moved or rotated, the fluid in the semicircular canals causes the cupula to bend, stimulating the hair cells and sending signals to the brain about the direction and speed of the head movement.

The information from the crista ampullaris is processed in the brainstem and cerebellum to help maintain balance and coordination. Dysfunction of the crista ampullaris can result in dizziness, vertigo, and other balance problems.

Overall, the crista ampullaris is a vital component of the vestibular system, helping to ensure that we can move and navigate our surroundings effectively and without feeling disoriented.