"Lobus renalis" is a medical term that refers to a lobe of the kidney. The spelling of this term is based on the Latin language and is pronounced /ˈloʊbəs ˈrɛnəlɪs/ (loh-buhs reh-nuh-lis) in the International Phonetic Alphabet. The first part of the word, "lobus," is spelled with a silent "b" and is pronounced with a long "o" sound followed by a short "u" sound. The second part of the word, "renalis," is pronounced with a long "e" sound before the "a" and is followed by a short "i" sound.
The term "lobus renalis" refers to one of the functional segments or subdivisions of the main organ of the urinary system, the kidney. The word "lobus" in Latin means "lobe," and "renalis" pertains to the kidney. Each kidney is composed of several lobes, with a variable number ranging from eight to eighteen lobes, depending on the species.
The lobus renalis is primarily characterized by a pyramid-like structure called a renal pyramid or a medullary pyramid. These pyramids consist of tubules that transport urine, blood vessels, and interstitial tissue. A lobus renalis encompasses a renal pyramid, along with the surrounding renal cortex and renal columns, which are comprised of tissue that extends between the pyramids.
These lobes are responsible for the main functions of the kidney, including the filtration of waste products from the blood, the regulation of fluid balance, electrolyte balance, and blood pressure control. The lobus renalis, with its pyramid structure, possesses multiple nephrons that play a critical role in the formation of urine.
Understanding the structure and organization of the lobus renalis is fundamental in comprehending the complex processes and functions carried out by the kidney, allowing for the maintenance of homeostasis in the body.
Reniculus.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
The word "lobus renalis" is derived from Latin. The term "lobus" translates to "lobe" in English, referring to a rounded, projecting part or subdivision of an organ. The word "renalis" pertains to the kidney, derived from the Latin word "ren", meaning kidney. Therefore, "lobus renalis" describes a lobe of the kidney.