COCHLEA

WHERE IS THE COCHLEA FOUND?

IN THE INNER EAR

HOW MANY CHAMBERS IS THE COCHLEA MADE UP OF?

3

NAME THE 3 SPACES OF THE COCHLEA:

SCALA VESTIBULI
SCALA TYMPANI
SCALA MEDIA OR COCHLEAR DUCT

WHAT 2 CHAMBERS ARE FILLED WITH PERIPLYMH LIQUID:

SCALA VESTIBULI AND SCALA TYMPANI

PERILYMPH IS:

AN EXTRACELLULAR FLUID LOCATED IN 2 CHAMBERS OF COCHLEA

SCALA MIDIA IS FILLED WITH:

LIQUID CALLED ENDOLYMPH

HELICOTREMA

WHERE THE SCALA VESTIBULI AND SCALA TYMPANI MEET IN THE COCHLEA

BASILAR MEMBRANE

SEPARATES THE COCHLEAR DUCT FROM THE SCALA TYMPANI

SPIRAL ORGAN OF CORTI

"LIKE A KEYBOARD ROLLED UP" TRANDUCES KINETIC ENERGY OF SOUND INTO LIQUID THEN INTO NERVE IMPULSE

VESTIBULAR MEMBRANE

SCALA TYMPANI

SCALA VESTIBULI

COCHLEAR DUCT

TECTORIAL MEMBRANE

BASILAR MEMBRANE

COCHLEAR BRANCH OF VESTIBULOCOCHLEAR NERVE #8

SPIRAL ORGAN OF CORTI

THE FLOOR OF THE SCALA VESTIBULI IS:

VESTIBULAR MEMBRANE

SCALA IS JUST:

SPACE

COCHLEAR DUCT CONTAINS:

ENDOLYMPH

THE SECONDARY TYMPANIC MEMBRANE IS LOCATED IN

ROUND WINDOW.

THE STAPES VIBRATES IN:

OVAL WINDOW

PERILYMPH