B2 中高級 美國腔 4495 分類 收藏
開始影片後,點擊或框選字幕可以立即查詢單字
字庫載入中…
回報字幕錯誤
Beneath your ribs, you'll find, among other things, the pancreas, an organ that works a lot like a personal health coach.
This organ controls your sugar levels and produces a special juice that releases the nutrients from your food to help keep you in the best possible shape.
The pancreas sits just behind your stomach, an appropriate home, as one of its jobs is to break down the food you eat.
It aids digestion by producing a special tonic made of water, sodium bicarbonate, and digestive enzymes.
Sodium bicarbonate neutralizes the stomach's natural acidity, so these digestive enzymes can perform their jobs.
Lipase breaks down fatty substances, protease splits up proteins, and amylase divides carbohydrates to create energy-rich sugars.
Most of those nutrients then get absorbed into the blood stream, and go on to enrich the body.
While all this is happening, the pancreas works on another critical task, controlling the amount of sugar in your blood.
It achieves this with the hormones insulin and glucagon, which are produced in special cells called the Islets of Langerhans.
Having too much or too little sugar can be life threatening, so the pancreas must stay on constant alert.
After a big meal, the blood often becomes flushed with sugar.
To bring us back to normal, the pancreas releases insulin, which makes the excess sugar move into cells, where it's either used as an energy source, or stored for later.
Insulin also tells the liver to shut down sugar production.
On the other hand, if blood sugar is low, the pancreas releases a hormone called glucagon that tells the body's cells and liver to release stored sugars back into the bloodstream.
The interplay between insulin and glucagon is what keeps our sugar levels balanced.
But a faulty pancreas can no longer coach us like this, meaning that this healthy balance is destroyed.
If it's weakened by disease, the organ's ability to produce insulin may be reduced, or even extinguished, which can trigger the condition known as diabetes.
Without regular insulin release, sugar steadily builds up in the blood, eventually hardening the blood vessels and causing heart attacks, kidney failure, and strokes.
The same lack of insulin deprives cells of the energy-rich sugar they need to grow and function.
People with diabetes also tend to have higher levels of glucagon, which makes even more sugar circulate.
Without this internal health coach, our sugar levels would go haywire, and we wouldn't be able to digest important nutrients.
But like any coach, it's not the pancreas' job alone to keep us healthy.
It needs our conscious participation, too.
提示:點選文章或是影片下面的字幕單字,可以直接快速翻譯喔!

載入中…

載入中…

你知道胰腺的功能是什麼嗎?人體裡的首席管家 (What does the pancreas do? - Emma Bryce)

4495 分類 收藏
稲葉白兎 發佈於 2019 年 4 月 25 日    Julia Kuo 翻譯    Winnie Liao 審核
看更多推薦影片
  1. 1. 單字查詢

    在字幕上選取單字即可即時查詢單字喔!

  2. 2. 單句重複播放

    可重複聽取一句單句,加強聽力!

  3. 3. 使用快速鍵

    使用影片快速鍵,讓學習更有效率!

  4. 4. 關閉語言字幕

    進階版練習可關閉字幕純聽英文哦!

  5. 5. 內嵌播放器

    可以將英文字幕學習播放器內嵌到部落格等地方喔

  6. 6. 展開播放器

    可隱藏右方全文及字典欄位,觀看影片更舒適!

  1. 英文聽力測驗

    挑戰字幕英文聽力測驗!

  1. 點擊展開筆記本讓你看的更舒服

  1. UrbanDictionary 俚語字典整合查詢。一般字典查詢不到你滿意的解譯,不妨使用「俚語字典」,或許會讓你有滿意的答案喔