Renal pyramids
Renal Pyramids
The Renal Pyramids (pronunciation: /ˈriːnəl ˈpɪrəmɪdz/) are cone-shaped tissues of the kidney. In medical terminology, 'renal' refers to the kidney and 'pyramids' refer to the shape of these structures.
Etymology
The term 'Renal' is derived from the Latin word 'renes', meaning kidneys. The term 'Pyramids' is derived from the Greek word 'pyramis' which means a pyramid.
Anatomy
The Renal Medulla, the innermost part of the kidney, consists of several (usually 8-18) Renal Pyramids. The base of each pyramid faces the Renal Cortex, while the apex, also known as the renal papilla, points internally towards the Renal Pelvis. The pyramids appear striped because they are formed by straight parallel segments of nephrons and collecting ducts.
Function
The primary function of the Renal Pyramids is to transport urine from the cortical part of the kidney where it is produced, to the calyces, and then to the renal pelvis. From the renal pelvis, the urine travels down the ureter to the bladder.
Related Terms
- Renal Medulla: The innermost part of the kidney, which contains the Renal Pyramids.
- Renal Cortex: The outer part of the kidney, where the base of the Renal Pyramids is located.
- Renal Pelvis: The funnel-shaped structure that collects urine from the Renal Pyramids and passes it to the ureter.
- Nephron: The functional unit of the kidney, segments of which form the Renal Pyramids.
- Ureter: The duct by which urine passes from the kidney to the bladder.
External links
- Medical encyclopedia article on Renal pyramids
- Wikipedia's article - Renal pyramids
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