Helicotrema
Helicotrema
Helicotrema (pronunciation: hel-i-ko-tre-ma) is a term used in anatomy and physiology to describe a specific part of the cochlea in the inner ear.
Etymology
The term 'Helicotrema' is derived from the Greek words 'helix', meaning spiral, and 'trema', meaning hole. This is a direct reference to the spiral hole at the apex of the cochlea where the scala tympani and scala vestibuli meet.
Definition
The Helicotrema is the part of the cochlea where the scala tympani and the scala vestibuli meet. This is the point where the perilymph is able to flow from the scala tympani to the scala vestibuli in the cochlea. It is a crucial part of the auditory system, allowing for the transmission of sound waves through the inner ear.
Related Terms
- Cochlea: The spiral-shaped, fluid-filled inner ear structure; it is lined with cilia (tiny hairs) that move when vibrated and cause a nerve impulse to form.
- Scala tympani: The lower chamber of the cochlea in the inner ear, which begins near the round window and ends at the helicotrema, where it joins the scala vestibuli.
- Scala vestibuli: The upper chamber of the cochlea. It leads from the oval window to the apex of the cochlea, where it joins with the scala tympani at the helicotrema.
See Also
External links
- Medical encyclopedia article on Helicotrema
- Wikipedia's article - Helicotrema
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