ANAT 261 Lecture Notes - Microvillus, Lamina Propria, Adrenal Gland

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The urinary system is made up of the kidneys, ureters, urinary bladder and the urethra. In this course, we will only study the kidneys and the urinary bladder. The urinary system contributes to: excretion of metabolic waste products (such as urea) This is done through a filtration process, during which proteins such as albumin are recovered: regulation of total body water. Highly regulated and can vary greatly depending on how much water you consume: regulation of electrolyte balance. Retains sodium and other ions to a constant level: endocrine secretion of renin and erythropoietin. Renin is an enzyme released into the blood which controls blood pressure. Erythropoietin stimulates rbc production (modern name is erithrogenin) The kidney is shaped like a kidney bean (which was named after it) It has two borders: the concave border, called the hilium, is where the renal pelvis is located. This structure is funnel shaped and is continuous with the ureters.

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