Juxtaglomerular apparatus
- Juxtaglomerular apparatus
- The prefix "juxta-" comes from the Latin preposition meaning near, nearby, close. The juxtaglomerular apparatus is a collective term referring to the cells near a structure called the glomerulus in the kidney. The juxtaglomerular cells are specialized cells that stimulate the secretion of the adrenal hormone aldosterone and play a major role in renal autoregulation, the kidney's self-governance.
* * *
juxtaglomerular apparatus n a functional unit near a kidney glomerulus that controls renin release and is composed of juxtaglomerular cells and a macula densa
* * *
a complex in the kidney comprising the juxtaglomerular cells, macula densa, and lacis cells of the polkissen; it is the site of tubuloglomerular feedback for autoregulation of the glomerular filtration rate. Called also juxtaglomerular complex.
Medical dictionary.
2011.
Look at other dictionaries:
Juxtaglomerular apparatus — The juxtaglomerular apparatus is a microscopic structure in the kidney, which regulates the function of each nephron. The juxtaglomerular apparatus is named for its proximity to the glomerulus: it is found between the vascular pole of the renal… … Wikipedia
apparatus — 1. A collection of instruments adapted for a special purpose. 2. An instrument made up of several parts. 3. [TA] A group or system of glands, ducts, blood vessel s, muscles, or other anatomic structures involved in the performance of some… … Medical dictionary
juxtaglomerular complex — see under apparatus … Medical dictionary
Goormaghtigh apparatus (cells) — Goor·magh·tigh apparatus (cells) (g rґmah ti) [Norbert Goormaghtigh, Belgian physician, 1890–1960] juxtaglomerular cells … Medical dictionary
JGA — juxtaglomerular apparatus … Medical dictionary
JGA — • juxtaglomerular apparatus … Dictionary of medical acronyms & abbreviations
Nephron — For the drug with trade name Nephron, see Epinephrine. Nephron Nephron of the kidney without juxtaglomerular apparatus Latin nephroneum Gray s … Wikipedia
Macula densa — In the kidney, the macula densa is an area of closely packed specialized cells lining the wall of the distal convoluted tubule (DCT) at the point of return of the nephron to the vascular pole of its parent glomerulus glomerular vascular pole. The … Wikipedia
renal system — ▪ anatomy Introduction in humans (human body), organ system that includes the kidneys, where urine is produced, and the ureters, bladder, and urethra for the passage, storage, and voiding of urine. In many respects the human excretory, or… … Universalium
Cell — The basic structural and functional unit in people and all living things. Each cell is a small container of chemicals and water wrapped in a membrane. Each cell in the human body there are 100 trillion cells in each of us contains the entire… … Medical dictionary