Kidney
Kidney is a pair of excretory organ.
Color: Reddish brown
Urinary system - Kidney, Ureter, Bladder
Weight
Male - 150 gms
Female - 135 gms
Long - 11 cm, Wide - 6 cm, Thick - 3 cm.
* Right kidney is lower than left kidney because of liver
* Kidney removes waste products and excess of water and salts from the blood and maintain its pH
Blood pH level (7.35-7.45)
Functions of kidney
* Excretion
* Secretion
* Regulation
* Metabolism
Excretion
kidney excretes waste products (Urea, Uric acid) via urine
Secretion
It secretes variety of hormones like Erythropoietin, Calcitriol, Renin
- Erythropoietin hormone - For blood
- Calcitriol hormone - For Vitamin D
- Renin hormone - For Blood pressure (BP)
Normal Blood Pressure- 120/80 mm Hg
Regulation
- Acid-base homeostasis- Maintain blood pH level (7.35-7.45)
- Osmoregulation- Maintains blood pressure, extracellular fluid
Convert energy (Carbohydrates, proteins, lipids and other nutrients) from food
Metabolism
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