Answer:
The portion of the kidney that extends between the renal pyramids is called as renal columns.
Step-by-step explanation:
The body part kidney comes under the excretory system of the body. The main function of kidney is to purify the blood and water. The best parties excreted and ejected out of the body through urinary system and the pure and useful blood liquid is placed back into the body for further use.
A normal human being has a one pair of kidneys. The kidney is a bean shaped body organ. Adrenal gland is also present on the topmost portion of the kidney which is responsible for the release of a hormone which is adrenaline.