juxtaglomerular apparatus

apparatus /ap·pa·ra·tus/ (ap″ah-ră´tus) pl. appara´tus, apparatuses   a number of parts acting together to perform a special function.

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branchial apparatus  pharyngeal a.

Golgi apparatus  see under complex.

juxtaglomerular apparatus  see under cell.

Kirschner's apparatus  a wire and stirrup apparatus for applying skeletal traction in leg fractures.

lacrimal apparatus , apparatus lacrima´lis the lacrimal gland and ducts and associated structures.

pharyngeal apparatus  the pharyngeal arches, pouches, and grooves considered as a unit.

subneural apparatus  see under cleft.

vestibular apparatus  the structures of the inner ear concerned with stimuli of equilibrium, including the semicircular canals, saccule, and utricle.

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juxtaglomerular apparatus,

a collection of cells located beside each renal glomerulus, consisting of a portion of the distal convoluted tubule arising from that glomerular capsule, segments of the afferent and efferent arterioles closest to the glomerulus, and cells lying between these structures. It is involved in the secretion of renin and EPO in response to blood pressure changes and is important in autoregulation of certain kidney functions. Also called juxtaglomerular complex.

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apparatus [ap″ah-rat´tus] (pl. appara´tus, apparatuses)

an arrangement of a number of parts acting together to perform a special function.

Golgi apparatus see golgi apparatus.

juxtaglomerular apparatus a collective term for the juxtaglomerular cells in a nephron.

lacrimal apparatus see lacrimal apparatus.

Wangensteen's apparatus a nasal suction apparatus connected with a duodenal tube for aspirating gas and fluid from stomach and intestine.