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Question
Given below is a diagrammatic cross section of a single loop of human cochlea. Which one of the following options correctly represent the names of three different parts?
Given below is a diagrammatic cross section of a single loop of human cochlea. Which one of the following options correctly represent the names of three different parts?
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Solution
The correct option is D B- Sensory hair cells, A- Perilymph, C- Tectorial membrane
Perilymph is an extracellular fluid located within the cochlea (part of the inner ear) in two of its three compartments, the scala tympani and scala vestibuli. The ionic composition of perilymph is comparable to that of plasma and cerebrospinal fluid.Tectorial membrane is a membrane having the consistency of jelly that covers the surface of the organ of Corti. It is located above the spiral limbus and spiral organ of corti and elongates to cochlea. Sensory hair cell is the mechanosensory cell which helps in hearing and vestibular function. The organ of corti in the cochlea has sensory cells which hold the hair cell. Thus, the correct answer is option D.
Perilymph is an extracellular fluid located within the cochlea (part of the inner ear) in two of its three compartments, the scala tympani and scala vestibuli. The ionic composition of perilymph is comparable to that of plasma and cerebrospinal fluid.Tectorial membrane is a membrane having the consistency of jelly that covers the surface of the organ of Corti. It is located above the spiral limbus and spiral organ of corti and elongates to cochlea. Sensory hair cell is the mechanosensory cell which helps in hearing and vestibular function. The organ of corti in the cochlea has sensory cells which hold the hair cell. Thus, the correct answer is option D.
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