stria vascularis
Quick Summary
The stria vascularis is a crucial component of the cochlear duct (scala media) in the inner ear, playing a vital role in hearing. This specialized tissue lines the outer wall of the cochlear duct and is densely supplied with blood vessels.12
The primary function of the stria vascularis is to maintain the unique ionic composition of the endolymph, the fluid filling the cochlear duct. It is thought to be responsible for the high concentration of potassium ions and low concentration of sodium ions found in the endolymph, which is essential for the proper functioning of the hair cells responsible for hearing. The stria vascularis is believed to produce endolymph through selective ion transport, distinguishing it from perilymph, the fluid in the surrounding bony labyrinth.12
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human earStructure of the cochlea…wall of the cochlea: the stria vascularis, which lines the outer wall of the cochlear duct, and the fibrous spiral ligament, which lies between the stria and the bony wall of the cochlea. A layer of flat cells bounds the stria, separating it from the spiral ligament. The hypotenuse is…
Read More…wall of the cochlea: the stria vascularis, which lines the outer wall of the cochlear duct, and the fibrous spiral ligament, which lies between the stria and the bony wall of the cochlea. A layer of flat cells bounds the stria, separating it from the spiral ligament. The hypotenuse is…
Read More- human earEndolymph and perilymph
The secretory tissue called the stria vascularis, in the lateral wall of the cochlear duct, is thought to play an important role in maintaining the high ratio of potassium ions to sodium ions in the endolymph. Other tissues of the cochlea, as well as the dark cells of the vestibular…
Read MoreThe secretory tissue called the stria vascularis, in the lateral wall of the cochlear duct, is thought to play an important role in maintaining the high ratio of potassium ions to sodium ions in the endolymph. Other tissues of the cochlea, as well as the dark cells of the vestibular…
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