A<unk>  (from Greek νεφρός <unk>  meaning "kidney") is the basic structural and functional unit of the kidney. Its chief function is to regulate water and soluble substances like Sodium salts by filtering the blood, reabsorbing what is needed and excreting the rest as urine.<unk> s eliminate wastes from the body, regulate blood volume and pressure, control levels of electrolytes and metabolites, and regulate blood pH. Its functions are vital to life and are regulated by the endocrine system by hormones such as antidiuretic hormone, aldosterone, and parathyroid hormone.
Nephron
Bone marrow
Lymphocyte
Oocyte
Lymphoblast
Granulocyte
Plasma cell
Adipocyte