These then get snared in their alimentary canals, cannot be broken down by the animals' digestive enzymes and may ultimately kill them.

然后这些东西会陷入道，无法被动物酶分解，并最终可能致死。

In specific places along the tract, like the esophageal sphincter, the circular layer thickens, forming these sphincters that keep food from passing from one part of the gastrointestinal tract to another.

在道一些特定部位，例如食管括约肌，内环肌层增厚，形成括约肌，可以防止食物从一个部位反流至上一个部位。

The gut microbiome is everything in the digestive tract.

肠道微生物群是指道中一切。

The scientists used a simulated digestive tract to test three cocoa powders.

科学家使用模拟道来检验三种可可粉。

For example, if I were looking at the fruitarian diet, I would be critical of the fact that it's very unlikely that we were eating primarily fruit in prehistoric times considering our guts shrank as our brain got bigger.

例如，我认为在史前时期采用水果饮食肯定是行不通，因为在那个时候，人类道比较短，而大脑相对较大。

Next, they captured birds and flushed their digestive tracts to see what they were eating.

然后，他们捕获了只鸟并对它们道进行冲洗，目是看看它们吃了什么。

Most of them are in our digestive tract and they help us digest food.

它们大多在我们道中，帮助我们食物。

And if you don't digest lactose, then it passes down into the lower gut, where it provides fuel for bacteria that ferment it, producing gas and a few other potential symptoms, such as pain bloating diarrhea or even nausea.

如果你不乳糖，它就会进入下道，在那里为发酵乳糖细菌提供燃料，产生气体和一些其他潜在症状，如疼痛、腹胀、腹泻甚至恶心。

A cardiac stress test, a full body MRI, anlectromyogram, a CBC, baseline glucose. Upper GI?

心脏负荷检查，全身磁共振成像，肌电图，全血细胞计数，葡萄糖基线，上道？

It doesn't fit with his G.I. symptoms.

但是这个诊断和他道症状不符。

And, just as you're about to throw up, the muscles in your abs and diaphragm literally squeeze your stomach, forcing its icky contents back up your digestive tract to your throat and then your mouth.

而且，就在你即将呕吐时，腹肌和横膈膜中肌肉会挤压你胃，迫使其恶心内容物回到你道，到达你喉咙，然后到达你嘴巴。

Gut microbial health, once a fringe medical interest, is now mainstream for human beings, as bugs in the alimentary canal are linked with conditions ranging from obesity to arthritis.

肠道微生物健康曾经是一种边缘医学关注点，现在已经成为人类主流，因为道中细菌与肥胖、关节炎等一系列疾病有关。

In fact, the enteric nervous system, which is an extensive mesh-like network of neurons that controls your entire digestive tract from the esophagus to the anus, doesn't even require the brain at all.

事实上，肠道神经系统是一个由神经元组成网状网络，控制着从食道到肛门整个道，它甚至不需要大脑控制。

Plasma is made mostly of water and salts that we absorb through our digestive tracts everyday.

血浆主要由我们通过道每天吸收水和盐组成。

And unlike most mammals, birds don't have teeth that could pulverize a chilli's seed; their digestive tract can make a seed more fertile and, of course, a bird can fly far and wide.

与大多数哺乳动物不同，鸟类没有可以粉碎辣椒种子牙齿；它们道可以使种子更容易发芽，当然还有，鸟类可以飞得很远很远。

All parts of the body that interface with the environment, such as the lungs, the digestive track, and the skin, have to be prepared to protect the body from infection.

身体与环境接触所有部位，如肺部、道和皮肤，都必须做好保护身体免受感染准备。

After confessing that he did in fact have vital intelligence snaking its way through his GI tract, the Prussians chained him to a latrine until a box emerged 30 hours later.

在承认了自己道里确实有重要情报后，普鲁士人把他锁在厕所里，直到30小时后他拉出了一个盒子。

Dissemination of bacteria to other sites outside the lungs, such as central nervous system, GI tract, kidneys and heart, may occur via infected macrophages that carry the bacteria.

军团菌可播散到肺外其它部位，如中枢神经系统、道、肾脏和心脏，由受感染巨噬细胞传播。

They're found at every nerve ending, they're found throughout your digestive tract where they store, for example, insulin, in your gastrointestinal tract, particularly, they're found in the pancreas.

它们出现在每个神经末梢，出现在整个道——它们在那里存储物质，比如在胃肠道储存胰岛素——尤其关键是它们还出现在胰腺。

And when that moment arrives, what was once food says farewell to the alimentary canal that temporarily held it, and passes back into the light of day.

当那一刻到来时，曾经食物告别了暂时支撑它道，回到了光天日之下。