![This is blank.](https://digitalhistology.org/wp-content/themes/histology-unified/imgs/trans.png)
Cochlea
Another section of a non-human cochlea shows this bony tube coiled into a spiral. The cochlear duct is centrally located within the cochlea, dividing it into a scala vestibuli, lying above the cochlear duct, and a scala tympani lying below. Scala vestibuli and scala tympani are continuous at the tip of the cochlea at the helicotrema. 40x
![Cochlear duct <p>Another section of a non-human cochlea shows this bony tube coiled into a spiral. The cochlear duct is centrally located within the cochlea, dividing it into a scala vestibuli, lying above the cochlear duct, and a scala tympani lying below. Scala vestibuli and scala tympani are continuous at the tip of the cochlea at the helicotrema. 40x</p>](https://digitalhistology.org/wp-content/uploads/2018/04/O.E.IE_.C.03.P01-1.png)
Cochlear duct
Another section of a non-human cochlea shows this bony tube coiled into a spiral. The cochlear duct is centrally located within the cochlea, dividing it into a scala vestibuli, lying above the cochlear duct, and a scala tympani lying below. Scala vestibuli and scala tympani are continuous at the tip of the cochlea at the helicotrema. 40x
![Scala vestibuli <p>Another section of a non-human cochlea shows this bony tube coiled into a spiral. The cochlear duct is centrally located within the cochlea, dividing it into a scala vestibuli, lying above the cochlear duct, and a scala tympani lying below. Scala vestibuli and scala tympani are continuous at the tip of the cochlea at the helicotrema. 40x</p>](https://digitalhistology.org/wp-content/uploads/2018/04/O.E.IE_.C.03.P02-1.png)
Scala vestibuli
Another section of a non-human cochlea shows this bony tube coiled into a spiral. The cochlear duct is centrally located within the cochlea, dividing it into a scala vestibuli, lying above the cochlear duct, and a scala tympani lying below. Scala vestibuli and scala tympani are continuous at the tip of the cochlea at the helicotrema. 40x
![Vestibular membrane <p>Another section of a non-human cochlea shows this bony tube coiled into a spiral. The cochlear duct is centrally located within the cochlea, dividing it into a scala vestibuli, lying above the cochlear duct, and a scala tympani lying below. Scala vestibuli and scala tympani are continuous at the tip of the cochlea at the helicotrema. 40x</p>](https://digitalhistology.org/wp-content/uploads/2018/04/O.E.IE_.C.03.P03-1.png)
Vestibular membrane
Another section of a non-human cochlea shows this bony tube coiled into a spiral. The cochlear duct is centrally located within the cochlea, dividing it into a scala vestibuli, lying above the cochlear duct, and a scala tympani lying below. Scala vestibuli and scala tympani are continuous at the tip of the cochlea at the helicotrema. 40x
![Scala tympani <p>Another section of a non-human cochlea shows this bony tube coiled into a spiral. The cochlear duct is centrally located within the cochlea, dividing it into a scala vestibuli, lying above the cochlear duct, and a scala tympani lying below. Scala vestibuli and scala tympani are continuous at the tip of the cochlea at the helicotrema. 40x</p>](https://digitalhistology.org/wp-content/uploads/2018/04/O.E.IE_.C.03.P04-1.png)
Scala tympani
Another section of a non-human cochlea shows this bony tube coiled into a spiral. The cochlear duct is centrally located within the cochlea, dividing it into a scala vestibuli, lying above the cochlear duct, and a scala tympani lying below. Scala vestibuli and scala tympani are continuous at the tip of the cochlea at the helicotrema. 40x
![Basilar membrane <p>Another section of a non-human cochlea shows this bony tube coiled into a spiral. The cochlear duct is centrally located within the cochlea, dividing it into a scala vestibuli, lying above the cochlear duct, and a scala tympani lying below. Scala vestibuli and scala tympani are continuous at the tip of the cochlea at the helicotrema. 40x</p>](https://digitalhistology.org/wp-content/uploads/2018/04/O.E.IE_.C.03.P05-1.png)
Basilar membrane
Another section of a non-human cochlea shows this bony tube coiled into a spiral. The cochlear duct is centrally located within the cochlea, dividing it into a scala vestibuli, lying above the cochlear duct, and a scala tympani lying below. Scala vestibuli and scala tympani are continuous at the tip of the cochlea at the helicotrema. 40x
![Helicotrema <p>Another section of a non-human cochlea shows this bony tube coiled into a spiral. The cochlear duct is centrally located within the cochlea, dividing it into a scala vestibuli, lying above the cochlear duct, and a scala tympani lying below. Scala vestibuli and scala tympani are continuous at the tip of the cochlea at the helicotrema. 40x</p>](https://digitalhistology.org/wp-content/uploads/2019/05/O.E.IE_.C.03.P06.png)
Helicotrema
Another section of a non-human cochlea shows this bony tube coiled into a spiral. The cochlear duct is centrally located within the cochlea, dividing it into a scala vestibuli, lying above the cochlear duct, and a scala tympani lying below. Scala vestibuli and scala tympani are continuous at the tip of the cochlea at the helicotrema. 40x
![Modiolus <p>Another section of a non-human cochlea shows this bony tube coiled into a spiral. The cochlear duct is centrally located within the cochlea, dividing it into a scala vestibuli, lying above the cochlear duct, and a scala tympani lying below. Scala vestibuli and scala tympani are continuous at the tip of the cochlea at the helicotrema. 40x</p>](https://digitalhistology.org/wp-content/uploads/2018/04/O.E.IE_.C.03.P06-1.png)
Modiolus
Another section of a non-human cochlea shows this bony tube coiled into a spiral. The cochlear duct is centrally located within the cochlea, dividing it into a scala vestibuli, lying above the cochlear duct, and a scala tympani lying below. Scala vestibuli and scala tympani are continuous at the tip of the cochlea at the helicotrema. 40x
![Osseous spiral lamina <p>Another section of a non-human cochlea shows this bony tube coiled into a spiral. The cochlear duct is centrally located within the cochlea, dividing it into a scala vestibuli, lying above the cochlear duct, and a scala tympani lying below. Scala vestibuli and scala tympani are continuous at the tip of the cochlea at the helicotrema. 40x</p>](https://digitalhistology.org/wp-content/uploads/2018/04/O.E.IE_.C.03.P07-1.png)
Osseous spiral lamina
Another section of a non-human cochlea shows this bony tube coiled into a spiral. The cochlear duct is centrally located within the cochlea, dividing it into a scala vestibuli, lying above the cochlear duct, and a scala tympani lying below. Scala vestibuli and scala tympani are continuous at the tip of the cochlea at the helicotrema. 40x
![CN VIII <p>Another section of a non-human cochlea shows this bony tube coiled into a spiral. The cochlear duct is centrally located within the cochlea, dividing it into a scala vestibuli, lying above the cochlear duct, and a scala tympani lying below. Scala vestibuli and scala tympani are continuous at the tip of the cochlea at the helicotrema. 40x</p>](https://digitalhistology.org/wp-content/uploads/2018/04/O.E.IE_.C.03.P08.png)
CN VIII
Another section of a non-human cochlea shows this bony tube coiled into a spiral. The cochlear duct is centrally located within the cochlea, dividing it into a scala vestibuli, lying above the cochlear duct, and a scala tympani lying below. Scala vestibuli and scala tympani are continuous at the tip of the cochlea at the helicotrema. 40x