Renal pyramid
Renal Pyramid
The Renal Pyramid (pronunciation: /ˈriːnəl ˈpɪrəmɪd/) is a conical structure located within the kidney. It is one of the many functional units in the kidney that plays a crucial role in the process of urine formation.
Etymology
The term "Renal Pyramid" is derived from the Latin word 'Renalis' meaning 'of the kidneys' and the Greek word 'pyramis' meaning 'a pyramid'.
Structure
The Renal Pyramid is located in the innermost part of the kidney, known as the renal medulla. Each kidney contains around 8 to 18 pyramids. The base of each pyramid begins at the boundary of the renal cortex and extends to the renal papilla or apex, which is directed towards the renal sinus.
Function
The primary function of the Renal Pyramid is to regulate the concentration of water and soluble substances like sodium salts by filtering the blood, reabsorbing what is needed, and excreting the rest as urine. The pyramids along with the renal cortex are involved in the process of urine formation which includes filtration, reabsorption, secretion, and excretion.
Related Terms
- Renal Cortex: The outer portion of the kidney between the renal capsule and the renal medulla.
- Renal Medulla: The innermost part of the kidney, split up into a number of sections, known as the renal pyramids.
- Renal Papilla: The location where the renal pyramids in the medulla empty urine into the minor calyx in the kidney.
- Renal Sinus: The cavity or space within the kidney which is occupied by the renal pelvis, renal calyces, blood vessels, nerves and fat.
External links
- Medical encyclopedia article on Renal pyramid
- Wikipedia's article - Renal pyramid
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