📌آلية عمل الحبال الصوتية
الحبال الصوتية هي طيات صغيرة من العضلات، مثل طيات الجلد، متصلة بالجزء الداخلي من الحنجرة.
عند التنفس ، يتم تباعدهما حتى لا يعيقا مسار تيار الهواء؛ عند الهمس، يتم شد الحبال الصوتية بحيث يصدر الهواء الذي يمر عبرها صوتًا مشابهًا لأصوات الهسهسة أو الصفير؛ لتوليد صوت صوتي، تبدأ الحبال في الاهتزاز، وتنهار وتنفتح بشكل دوري.✨🦋
BY 🌡️معلومات طبية 💊
The lead from Wall Street offers little clarity as the major averages opened lower on Friday and then bounced back and forth across the unchanged line, finally finishing mixed and little changed.The Dow added 33.18 points or 0.10 percent to finish at 34,798.00, while the NASDAQ eased 4.54 points or 0.03 percent to close at 15,047.70 and the S&P 500 rose 6.50 points or 0.15 percent to end at 4,455.48. For the week, the Dow rose 0.6 percent, the NASDAQ added 0.1 percent and the S&P gained 0.5 percent.The lackluster performance on Wall Street came on uncertainty about the outlook for the markets following recent volatility.
Telegram is a cloud-based instant messaging service that has been making rounds as a popular option for those who wish to keep their messages secure. Telegram boasts a collection of different features, but it’s best known for its ability to secure messages and media by encrypting them during transit; this prevents third-parties from snooping on messages easily. Let’s take a look at what Telegram can do and why you might want to use it.
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