Explain the structure of kidney
Answers
Structure
The kidneys play a role in maintaining the balance of body fluids and regulating blood pressure, among other functions.
The kidneys are at the back of the abdominal cavity, with one sitting on each side of the spine.
The right kidney is generally slightly smaller and lower than the left, to make space for the liver.
Each kidney weighs 125–170 grams (g) in males and 115–155 g in females.
A tough, fibrous renal capsule surrounds each kidney. Beyond that, two layers of fat serve as protection. The adrenal glands lay on top of the kidneys.
Inside the kidneys are a number of pyramid-shaped lobes. Each consists of an outer renal cortex and an inner renal medulla. Nephrons flow between these sections. These are the urine-producing structures of the kidneys.
Blood enters the kidneys through the renal arteries and leaves through the renal veins. The kidneys are relatively small organs but receive 20–25 percent of the heart’s output.
Each kidney excretes urine through a tube called the ureter that leads to the bladder.
Structure
The kidneys play a role in maintaining the balance of body fluids and regulating blood pressure, among other functions.
The kidneys are at the back of the abdominal cavity, with one sitting on each side of the spine.
The right kidney is generally slightly smaller and lower than the left, to make space for the liver.
Each kidney weighs 125–170 grams (g) in males and 115–155 g in females.
A tough, fibrous renal capsule surrounds each kidney. Beyond that, two layers of fat serve as protection. The adrenal glands lay on top of the kidneys.
Inside the kidneys are a number of pyramid-shaped lobes. Each consists of an outer renal cortex and an inner renal medulla. Nephrons flow between these sections. These are the urine-producing structures of the kidneys.
Blood enters the kidneys through the renal arteries and leaves through the renal veins. The kidneys are relatively small organs but receive 20–25 percent of the heart’s output.
Each kidney excretes urine through a tube called the ureter that leads to the bladder.
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