There are over 50 different sphincters in the human body. How many can you name?

人体内共有超过50种不同的括约肌 你能叫出多少？

There are two little sphincters that control when to release your urine from the bladder.

有两个小括约肌控制何时从膀胱中释放尿液。

Sleeping on the right relaxes the lower oesophageal sphincter, allowing the acid to escape.

而右侧睡觉会松弛下食道括约肌，使胃酸逃脱。

It's one of many sphincters on your body.

它是你身体上的括约肌之一。

And it's the same color as my cadaver's esophageal sphincter.

而且，这甜品的颜色跟我解剖尸体的食管括约肌一样。

Additionally, the lower esophageal sphincter is tightly closed between meals to prevent acid reflux.

另外，食管下括约肌在不进食时会保持强力收缩状态，来防止胃酸返流。

When you want to delay urinating, you keep the sphincter closed.

当你想憋尿时，括约肌就会关上。

These parasympathetic neurons make the rectum contract and the internal anal sphincter relax.

这些副交感神经元可以使直肠收缩，并使肛门内括约肌松弛。

You may also stretch your external sphincter muscles.

你也有可能会撑大你的外括约肌。

Great timing. My " Check sphincter" light just went on.

说得真是时候。我的" 检查菊花" 灯刚好亮了呢。

You mock the sphincter but the sphincter is a class of muscle without which human beings couldn't survive.

你居然嘲笑括约肌 括约肌可是人体的一组肌肉 没有的话人类没法存活的哦。

Simultaneously, the internal urethral sphincter opens. This is called the micturition reflex.

同时，括约肌内壁开始打开。这叫做排尿反射。

The internal urethral sphincter automatically and involuntarily opens, and the urine is released.

尿道内括约肌自然而然的张开，尿就排出来了。

Typically, that internal sphincter muscle opens up when the bladder is about half full.

一般当膀胱充盈量达到一半时，内括约肌会开放。

Whooshing downwards, the fluid enters the urethra and stops short at the external urethral sphincter.

液体飞速的向下流进尿道，从膀胱经尿道排出体外。

It also decreases motor nerve stimulation to the external sphincter allowing it to relax as well.

其同时减少运动神经元对外括约肌的刺激，使其舒张。

In men and women, around the internal urethral orifice, the detrusor muscle thickens to form the internal sphincter.

无论男性女性，尿道内口的逼尿肌增厚，形成尿道内括约肌。

The lower esophageal sphincter has a resting pressure of 10 to 45 millimeters of mercury.

食管下括约肌的静息压力为10至45毫米汞柱。

The brain can counter it if it's not a good time to urinate by sending another signal to contract the external urethral sphincter.

通过发射另一个信号来控制尿道外括约肌大脑会判断现在是不是排尿的合适时机。

Simultaneously, the internal urethral sphincter opens.

同时，尿道内括约肌打开。