Lymphatic capillaries are the smallest lymphatic vessels, and they're located throughout the interstitial space.

毛细淋巴管是最小的淋巴管，它们广泛分布于间质。

Lymphatic capillaries are extremely permeable because their walls are made of endothelial cells that only loosely overlap, forming one-way minivalves.

毛细淋巴管是极度通透的，因为它们的管壁仅由松散重叠的内皮细胞构成，形成单向的微小瓣膜。

Once the lymph is inside the lymphatic capillaries, it travels through bigger and thicker-walled vessels, then trunks, and then ducts.

一旦淋巴进入毛细淋巴管，它就会通过更大、管壁更厚的淋巴管，然后是淋巴干，再然后是淋巴导管。

When an infection gets into the tissue, it can slip into a lymphatic capillary and move into a lymphatic vessel.

当感染侵入组织，它会进入毛细淋巴管，从而进入淋巴管。

Lymphatic capillaries are the smallest lymphatic vessels and collect fluid from the surrounding tissues.

毛细淋巴管是最小的淋巴管，从周围组织收集液体。

Well, that's the job of the microscopic lymphatic capillaries.

这是显微镜下毛细淋巴管的作用机制。

When the pressure in the interstitial space is greater than the pressure in the lymphatic capillary, the endothelial minivalves open up, allowing fluid to enter.

当间质空间的压力大于毛细淋巴管内时，内皮微瓣膜就会打开，允许液体进入。

The microscopic lymphatic capillaries are the smallest lymphatic vessels and collect fluid from the surrounding tissues.

显微镜下的毛细淋巴管是最小的淋巴管，从周围组织收集液体。

When the pressure in the interstitial space is less than the pressure in the lymphatic capillary, the endothelial minivalves are pushed shut, keeping the lymph inside.

当间质空间的压力小于毛细淋巴管内时，内皮微瓣膜就会关上，保持淋巴在内。

These endothelial cells are anchored to structures in the interstitial space by collagen filaments, which allows the lymphatic capillaries to remain flexible but retain their overall shape.

这些内皮细胞被胶原纤维锚定于间质空间的结构中；这使得毛细淋巴管保持柔韧以及维持整体形态。

After the lymph is picked up by the lymphatic capillaries, the capillaries converge into larger lymphatic vessels.

淋巴毛细血管吸收淋巴液后，毛细血管会聚成较大的淋巴管。

All of that excess fluid gets pulled into the afferent lymphatic capillaries, which are closed-ended vessels found throughout the body, even the brain, which is actually discovery made in 2015.

所有剩余的液体流进传入毛细淋巴管；淋巴管是遍布全身的闭锁管道；2015年，科学家发现大脑中也存在淋巴管。

The fluid picked up by the lymphatic capillaries is called lymph, which is simply defined as the fluid contained within the lymphatic system.

淋巴管毛细血管吸收的液体称为淋巴液，简称为淋巴系统内的液体。

Unlike the circulatory system, the lymphatic system isn't a closed loop because fluid and proteins make their way into the microscopic lymphatic capillaries, and all of the collected lymph is dumped into the veins.

和循环系统不同，淋巴系统不是一个闭合的环路，因为液体和蛋白质进入微小的毛细淋巴管中，并且所有被收集的淋巴都注入静脉。

Although they are similar to blood capillaries, lymphatic capillaries are more permeable, and therefore they're more prone to allow the passage of proteins or even larger particles such as bacteria and viruses.

尽管它们与血毛细血管相似，但淋巴毛细血管的渗透性更强，因此它们更容易使蛋白质甚至细菌和病毒等更大的颗粒通过。