The puborectalis forms a sling-like formation around the rectum called the anorectal angle.

耻骨直肌与直形成类似吊索的结构，叫做肛角。

Millipedes can even absorb water through the rectum.

马陆甚至可以从直吸收水分。

You know, the interesting fact about the rectum...Sheldon!

你知道，关于直有有趣的事实...Sheldon啊!

The large intestine — consisting of the colon, rectum, and anus — is relatively short, at about one and half meters, and it provides a nice little frame for the small intestine, here at the end of the alimentary canal.

——由结、直和肛门组成——相对较短，约 1.5 米，它为小提供了一漂亮的小框架，在消化道的末端。

Studies, however, show that the increase in diagnoses is mainly driven by a rise in rectal cancers and cancers found in the left, or distal, side of the colon, near the rectum.

诊断率上升主要是由于直癌和结左侧，也是结末端靠近直附近的癌症增加引起的。

So, in conclusion, I believe the painful sensation felt after passing a meal of spicy chilies is proof that the rectum does possess the sense of taste.

总而言之我认为吃完辣椒后排泄时感受到的痛苦证明了直的确有味觉。

Most of the time, polyps don't cause symptoms and are spotted on a colonoscopy, which is when a camera looks directly at the colon and rectum.

多数情况下，多数息肉不引起临床症状，可通过结镜发现；结镜即为一组能直视结、直的摄像装置。

Once the rectum is filled and stretched, signals travel to parasympathetic neurons in the spinal cord, initiating the defecation reflex.

当直被粪便填满并受到牵拉时，脊髓内的副交感神经元发出信号，启动排便反射。

And here, special nerve receptors measure pressure, and when enough waste pushes against the rectum walls, it triggers the defecation reflex.

这里，特殊的神经感受器测量压力，当足够多的废物冲击直壁时，它触发排便反射。

Instead, from the gut, bacteria get to the rectum, anus and eventually colonizes the perineum, becoming part of the normal flora.

相反，细菌由道到达直、肛门，最终定居于阴，成为正常菌群的一部分。

Maybe. But like our lawyers say, the world is full of things that can cause a rectum to bleed.

或许吧。但像我们律师说的，这世界上有很多东西能导致直出血。

With pelvic floor dysfunction, stool becomes difficult to eliminate from the rectum because of tightened pelvic floor muscles, or due to a pelvic organ prolapse, usually through childbirth or aging.

而骨盆底功能紊乱时，粪便变得很难从直中排出。原因可能是盆底肌过分紧张或者骨盆器官下垂。

Around week 8 of development the neuroblasts get to the proximal colon of the gut, and then they pass through the distal colon, and around week 12 they finally the reach the rectum.

在胚胎发育的第8周左右，神经母细胞到达道的结近端，之后穿过结远端； 在第12周左右到达直。

The bladder is a hollow, collapsible sac that temporarily stores urine. Like the kidneys, it's retroperitoneal, located posterior to the pubic bone and anterior to the rectum.

膀胱是一中空、可折叠的囊，暂时储存尿液。像肾脏一样，它位于腹膜后，位于耻骨后，直前。

The uterus is a hollow organ that sits behind the urinary bladder and in front of the rectum.

子宫是位于膀胱和直中间的空腔器官。

If you need my nose, you'll find it firmly lodged up the rectum of the tenure committee.

要找我的话， 只需到教职选举委员的马屁处寻我即可。

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收缩，并使肛门内括约肌松弛。

And with the exception of a couple of sacral nerves near the tailbone that run to the bladder and genitals and rectum, most of these nerves never go through the spinal cord.

除了尾骨附近的一些骶骨神经延伸到膀胱、生殖器和直之外，多数神经从未穿过脊髓。

A disruption of that neuroblast journey in that time window, means that nerve fibers don't develop in the rectum and parts of the colon.

（假如那时）神经母细胞的旅程被中断，意味着神经纤维不能在直和部分结中形成。

But most people also experience a few mass peristalsis movements a day — big, intense contractions that clear out a large swath of intestine at once, pushing feces into the rectum. These often occur just after eating.

但是多数人一天也经历一些规模的蠕动运动——巨而强烈的收缩，同时清理一片道，将粪便推入直。这些通常发生在刚吃完东西之后。