Another way to divide the kidney is into lobes and lobules.
A lobe consists of a medullary pyramid and the cortex overlying it. Interlobar arteries and veins mark them off.
The lobe can be divided into lobules, which consist of a medullary ray, the nephrons draining into it, and the section of the medullary pyramid continuous with it. In the cortex, interlobular arteries and veins mark them off, but there is no such clear division in the medulla. In this photograph, a lobe is outlined with a white line and a lobule with a black line. In this low power view of the cortex note that the interlobular vessels are not a part of the medullary rays.
A lobe consists of a medullary pyramid and the cortex overlying it. Interlobar arteries and veins mark them off.
The lobe can be divided into lobules, which consist of a medullary ray, the nephrons draining into it, and the section of the medullary pyramid continuous with it. In the cortex, interlobular arteries and veins mark them off, but there is no such clear division in the medulla. In this photograph, a lobe is outlined with a white line and a lobule with a black line. In this low power view of the cortex note that the interlobular vessels are not a part of the medullary rays.
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