- The kidneys are a pair of bean-shaped organs located on either side of the spine, below the ribs.
- They are essential for filtering waste and excess water from the blood to produce urine.
- The kidneys also regulate blood pressure, balance the body's salts and minerals, maintain acid-base balance, and produce hormones that help create red blood cells and keep bones healthy.
Location and structure
- Location: They are situated at the upper and back of the abdomen, one on each side of the spine.
- Protection: They are protected by the lower ribs, muscles, and a layer of fat.
- Size: A typical adult kidney is about 10 cm long, 6 cm wide, and 4 cm thick, and weighs around 150 grams.
- Shape: They are bean-shaped organs.
- Primary functions
- They filter about half a cup of blood every minute, removing waste and extra water.
- They maintain the body's balance of water, salts, and minerals like sodium, potassium, and calcium.
- They regulate and maintain the body's acid-base balance.
- They release hormones to control blood pressure.
- They produce erythropoietin to stimulate the production of red blood cells.
- They activate vitamin D, which is important for bone health.
- They release hormones to control blood pressure.
How they connect to the rest of the body
- Location: They are situated at the upper and back of the abdomen, one on each side of the spine.
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