Easy Diagram Of Organ Of Corti

The organ of corti or spiral organ is the receptor organ for hearing and is located in the mammalian cochlea.

Easy diagram of organ of corti. These hair cells are arranged to form one row of inner cells which extends the length of the basilar membrane and multiple rows of outer hair cells. In most mammals however it assumes the form of a snail like spiral which allows a longer cochlea to fit in a compact space. Its apex points anterolaterally. The organ of corti sits on top of this inside the scala mediathis is the apparatus that converts deflections of this into changes in membrane potential specialized receptor cells called hair cells are embedded in a mass of cells on top of this with a gelatinous membrane called the tectorial membrane above them.

Transduction occurs through vibrations of structures in the inner ear causing displacement of cochlear fluid and movement of hair cells at the organ of corti to produce electrochemical signals. Italian anatomist alfonso giacomo gaspare corti discovered the org. The organ of corti named after alfonso corti who first described it is the sensorineural organ of the cochlea. Start studying organ of corti.

Learn vocabulary terms and more with flashcards games and other study tools. Diagram of organ of corti. In humans the spiral is about 9 mm wide at the base and 5 mm high. This highly varied strip of epithelial cells allows for transduction of auditory signals into nerve impulses action potential.

Three rows in the basal turn four in the middle turn and five in the apical turn of the cochlea fig.