Question

A notch present on the medial side of kidney is known as
A. Ureter
B. Pelvis
C. Hilus
D. Pyramid

Answer 1

Hint: The medial concave border of the kidney has a notch through which the renal artery enters the kidney and the renal vein and ureter leave the kidney. Pyramid are present inside the kidney

Complete answer: A pair of kidneys that are bean shaped present behind the abdominal cavity. They are located left and right in the retroperitoneal space. The right Kidney often slightly lower than the left one because of the position of the liver. The kidneys are about 41/2 inches long and 21/2 inches wide. Kidney has three regions internally : an outer cortex, middle medulla and the renal pelvis .Renal pelvis contains hilum. The hilum is the concave part of the bean shaped where blood vessels and nerves enter and exit the kidney. The renal pelvis connects the kidney to the rest of the .Renal cortex is the outer region which contains about 1.25 million renal tubules. The renal medulla is the middle region which acts as a collection chamber. Renal pelvis is the inner region which receives urine. The renal cortex is a space between the medulla and the outer space. The renal medulla contains the majority of nephrons. Nephron is the structural and functional unit of kidney .Each nephron consists of Bowman’s capsule, Proximal convoluted tubule, Ascending limb, Loop of Henle, descending limb, distal convoluted tubule, collecting tubule. Renal artery brings waste filled blood from the aorta to the kidneys for filtering in the nephron.
So, the correct answer is “Option C”.

Note:
Kidneys remove wastes and extra fluid from the body, and maintain a healthy balance of water,salts,and minerals such as sodium, calcium, phosphorus and potassium in blood. Kidneys play a major role in the regulation of blood pressure and make up of blood. Kidneys also produce hormones that regulate blood pressure.