The inner portion is the renal medulla and the outside rim is the renal cortex.

内层为肾髓质，外层为肾皮质。

Each renal pyramid and the renal cortex above it is called a renal lobe.

每个肾锥体以及其上方的皮质部分合称为一个肾小叶。

The renal cortex can be divided into an outer cortical zone and an inner juxtamedullary zone.

肾皮质可分为外皮质区和内髓旁区。

The outer, granulated layer is the renal cortex.

外层颗粒状的是肾皮质。

The medulla is made up of 10 to 18 renal pyramids with the base of the pyramids facing the renal cortex and the tips of the pyramids, called renal papilla—or nipples, pointing towards the center of the kidney.

髓质由10-18个肾锥体构成，每个锥体基底面朝向皮质；而尖端称作肾乳头，则朝向肾的中心。