आंतरिक कान की अर्धवृत्ताकार नहरें आपको संतुलन के साथ मदद करती हैं। तरल पदार्थ की गति नहरों के बालों को आगे बढ़ाती है, जिससे तंत्रिका आवेग पैदा होते हैं जो आपके मस्तिष्क तक यात्रा करते हैं और यह बताते हैं कि आपका सिर बंद है। आप ऊपर नहीं गिरते क्योंकि आपका मस्तिष्क आपकी मांसपेशियों को आपका समर्थन करने के लिए कहता है।

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The semicircular canals of the inner ear help you with balance. ... This movement of the fluid moves the hairs of the canals, creating nerve impulses that travel up to your brain and let it know that your head is off balance. You don't fall over because your brain tells your muscles to support you.

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Your inner ear contains three canals with fluid and sensors inside. These detect the rotational movement of your head, whether that be up-and-down, side-to-side or tilting of your head. Each canal is located at a different angle so your brain can better judge where your head is moving. These trigger sensory nerves to tell your brain whether you are moving or if you are standing still. Further to this, the ear also contains the utricle and saccule which provide information about your body when your head is not moving. The utricle judges horizontal movement and the saccule is sensitive to vertical changes. This means it may be affected when you go up and down an elevator.

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