![This is blank.](https://digitalhistology.org/wp-content/themes/histology-unified/imgs/trans.png)
Semicircular canals
The ampulla of a semicircular duct, with its crista ampullaris, is shown near its union with the utricle. 30X
![Vestibule <p>The ampulla of a semicircular duct, with its crista ampullaris, is shown near its union with the utricle. 30X</p>](https://digitalhistology.org/wp-content/uploads/2018/04/O.E.IE_.SC_.05.P01-1.png)
Vestibule
The ampulla of a semicircular duct, with its crista ampullaris, is shown near its union with the utricle. 30X
![Ampulla of semicircular duct <p>The ampulla of a semicircular duct, with its crista ampullaris, is shown near its union with the utricle. 30X</p>](https://digitalhistology.org/wp-content/uploads/2018/04/O.E.IE_.SC_.05.P01.png)
Ampulla of semicircular duct
The ampulla of a semicircular duct, with its crista ampullaris, is shown near its union with the utricle. 30X
![- Crista ampullaris > <p>The crista ampullaris is a ridge-like structure that functions similarly to the macula in the utricle and in the saccule. However, in the crista the gelatinous layer forms a cupula that extends across the ampulla to the opposite wall. Changes in acceleration cause deflection of the cupula that stimulate receptor cells and initiate a neural response in CN VIII. Otoliths are absent in the crista.</p>](https://digitalhistology.org/wp-content/uploads/2018/04/O.E.IE_.SC_.05.P02.png)
- Crista ampullaris >
The crista ampullaris is a ridge-like structure that functions similarly to the macula in the utricle and in the saccule. However, in the crista the gelatinous layer forms a cupula that extends across the ampulla to the opposite wall. Changes in acceleration cause deflection of the cupula that stimulate receptor cells and initiate a neural response in CN VIII. Otoliths are absent in the crista.
![-- Receptor cells <p>The crista ampullaris is a ridge-like structure that functions similarly to the macula in the utricle and in the saccule. However, in the crista the gelatinous layer forms a cupula that extends across the ampulla to the opposite wall. Changes in acceleration cause deflection of the cupula that stimulate receptor cells and initiate a neural response in CN VIII. Otoliths are absent in the crista.</p>](https://digitalhistology.org/wp-content/uploads/2018/04/O.E.IE_.SC_.05.P03.png)
-- Receptor cells
The crista ampullaris is a ridge-like structure that functions similarly to the macula in the utricle and in the saccule. However, in the crista the gelatinous layer forms a cupula that extends across the ampulla to the opposite wall. Changes in acceleration cause deflection of the cupula that stimulate receptor cells and initiate a neural response in CN VIII. Otoliths are absent in the crista.
![-- Cupula <p>The crista ampullaris is a ridge-like structure that functions similarly to the macula in the utricle and in the saccule. However, in the crista the gelatinous layer forms a cupula that extends across the ampulla to the opposite wall. Changes in acceleration cause deflection of the cupula that stimulate receptor cells and initiate a neural response in CN VIII. Otoliths are absent in the crista.</p>](https://digitalhistology.org/wp-content/uploads/2018/04/O.E.IE_.SC_.05.P04-1.png)
-- Cupula
The crista ampullaris is a ridge-like structure that functions similarly to the macula in the utricle and in the saccule. However, in the crista the gelatinous layer forms a cupula that extends across the ampulla to the opposite wall. Changes in acceleration cause deflection of the cupula that stimulate receptor cells and initiate a neural response in CN VIII. Otoliths are absent in the crista.
![Connective tissue reticulum > <p>The connective tissue reticulum suspends the semicircular ducts in the semicircular canals.</p>](https://digitalhistology.org/wp-content/uploads/2018/04/O.E.IE_.SC_.05.P05.png)
Connective tissue reticulum >
The connective tissue reticulum suspends the semicircular ducts in the semicircular canals.