So there's five main buffers in the blood and in the kidney filtrate that the body can use to buffer hydrogen ions.

所以血和肾脏中有五个主要的缓冲剂，身体可以用来缓冲。

As the filtrate leaves the Bowman's capsule it flows into the renal tubule, which is surrounded by the peritubular capillaries.

开肾小囊后流入肾小管，后者被管周毛细血管网包。

This reabsorption process allows water to pass from the glomerular filtrate back into the circulatory system.

这种再吸收过程使水从肾小球进入循环系统。

Ultimately the filtrate is turned into urine and is excreted from the kidney through the ureter, into the bladder, and peed away.

最变成尿，通过输尿管从肾脏排出，进入膀胱，再尿出。

The glomerular filtrate is not the same consistency as urine, as much of it is reabsorbed into the blood as the filtrate passes through the tubules of the nephron.

肾小球与尿的浓度不同，当通过肾小管时，大部分被重新吸收到血中。

Sometimes fluid or electrolytes can move back from the filtrate into the blood - called reabsorption, and sometimes more fluid or electrolytes can move from the blood to the fitrate - called secretion.

有时体或电解质能从回到血中，被称为重吸收；有时更多体或电解质从血流入，称之为分泌。

Blood gets into the kidney through the renal artery, into tiny clumps of arterioles called glomeruli where it's initially filtered, with the filtrate, the stuff filtered out, moving into the renal tubule.

血通过肾动脉流入肾脏，一旦入肾，便进入一小团小动脉，即肾小球，开始过；过出来，进入肾小管。

In these situations, the nephron tries to hold on to salt and water, so by the time filtrate has moved into the distal tubule, there's very little of both sodium and water remaining in the lumen.

在这种情况下，肾单位试图保留盐和水，所以当过移入远曲小管时，只有少量钠和水留在管腔中。