Glomerulus | definition of glomerulus by Medical dictionary
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glomerulus
Related to glomerulus: Proximal convoluted tubule, Collecting duct
[glo-mer´u-lus] (pl. glomer´uli) (L.)
1. a small tuft or cluster, such as a small convoluted mass of capillaries.
2. a network of vascular tufts encased in the malpighian capsule of the kidney. adj., adj glomer´ular.
The glomerulus is an integral part of the nephron, the basic unit of the kidney. Each nephron is capable of forming urine by itself, and each kidney has approximately a million nephrons. The specific function of each glomerulus is to bring blood (and the waste products it carries) to the nephron. As the blood flows through the glomerulus, about one fifth of the plasma passes through the glomerular membrane, collects in the malpighian capsule, and then flows through the renal tubules. Much of this fluid passes back into the blood via the small capillaries around the tubules (peritubular capillaries). The continuous filtration of fluid from the glomeruli and its reabsorption into the peritubular capillaries are made possible by a high pressure in the glomerular capillary bed and a low pressure in the peritubular bed.
Any disease of the glomeruli, such as acute or chronic glomerulonephritis, must be considered serious because it interferes with the basic functions of the kidneys, that is, filtration of liquids and excretion of certain end products of metabolism and excess sodium, potassium, and chloride ions that may accumulate in the blood.
glo·mer·u·lus
glo·mer·u·li
(glō-mer'yū-lŭs, -ū-lī),
1. A plexus of capillaries.
2. A tuft formed of capillary loops at the beginning of each nephric tubule in the kidney; this tuft, with its capsule constitutes the corpusculum renis (renal corpuscle). Synonym(s): malpighian glomerulus, malpighian tuft
3. The twisted secretory portion of a sweat gland.
4. A cluster of dendritic ramifications and axon terminals forming a complex synaptic relationship and surrounded by a glial sheath.
Synonym(s): glomerule
[Mod. L. dim. of L. glomus, a ball of yarn]
/glo·mer·u·lus/ (glo-mer´u-lus) pl. glomer´uli [L.] a small tuft or cluster, as of blood vessels or nerve fibers; often used alone to designate one of the renal glomeruli.
olfactory glomerulus one of the small globular masses of dense neuropil in the olfactory bulb, containing the first synapse in the olfactory pathway.
renal glomerulus globular tufts of capillaries, one projecting into the expanded end or capsule of each of the uriniferous tubules, which together with the glomerular capsule constitute the renal corpuscle.
(glō-mĕr′yə-ləs)
n. pl. glomeru·li (-lī′)
1. A small cluster or mass of blood vessels or nerve fibers.
2. A tuft of capillaries situated within a Bowman's capsule at the end of a renal tubule in the vertebrate kidney that filters waste products from the blood and thus initiates urine formation.
[glōmer′yoo͡ləs] pl. glomeruli
Etymology: L, small ball
1 a tuft or cluster.
2 a structure composed of blood vessels or nerve fibers, such as a renal glomerulus. glomerular, adj.
, pl. glomeruli (glō-meryū-lŭs, -lī)
2. A tuft formed of capillary loops at the beginning of each nephric tubule in the kidney; this tuft with its capsule constitutes the renal corpusculum (malpighian body).
Synonym(s): Bowman capsule, glomerule.
(glō-mĕr′ū-lŭs) plural.glomeruli [L.]
FILTRATION IN GLOMERULUS
1. One of the capillary networks that are part of the renal corpuscles in the nephrons of the kidney. Each is surrounded by a Bowman's capsule, the site of renal (glomerular) filtration, which is the first step in the formation of urine. See: illustration
2. A group of twisted capillaries or nerve fibers.
olfactory glomerulus
A neural network found in the olfactory bulb, formed by the dendrites of mitral cells intertwined with the axons of olfactory receptor cells.
A microscopic, spherical tuft of blood capillaries, especially that within the BOWMAN'S CAPSULES of the kidney, through which urine is filtered. From the Latin glomus , a ball of thread.
a knot of capillaries found in the vertebrate kidney, enclosed in the BOWMAN'S CAPSULE. Substances such as water and any small molecules dissolved in it filter from the blood, across the endothelium of the capillaries and the epithelium of the capsule, into the tubules leading to the LOOP OF HENLE.
Glomerulus (glomeruli)
A small tuft of blood capillaries in the kidney, responsible for filtering out waste products.
Mentioned in: Goodpasture's Syndrome, Nephrotoxic Injury
2. A tuft formed of capillary loops at the beginning of each nephric tubule in the kidney.
Synonym(s): Bowman capsule.
pl. glomeruli [L.] a small tuft or cluster.
cerebellar glomerulus
termination sites for dendrites and axons of cerebellar and medullary and spinal nerve fibers.
termination points of olfactory nerves in the olfactory lobes.
renal glomerulus
a small convoluted mass of capillaries, a network of vascular tufts, encased in the malpighian or Bowman's capsule.
The glomerulus is an integral part of the nephron, the basic unit of the kidney. Each nephron is capable of forming urine by itself, and each kidney has many nephrons. The specific function of each glomerulus is to bring blood (and the waste products it carries) to the nephron. As the blood flows through the glomerulus, about one-fifth of the plasma passes through the glomerular membrane, collects in the malpighian capsule, and then flows through the renal tubules. Much of this fluid passes back into the blood via the small capillaries around the tubules (peritubular capillaries). The continuous filtration of fluid from the glomeruli and its reabsorption into the peritubular capillaries is made possible by a high pressure in the glomerular capillary bed and a low pressure in the peritubular bed.
Any disease of the glomeruli, such as acute or chronic glomerulonephritis, must be considered serious because it interferes with the basic functions of the kidneys; that is, filtration of liquids and excretion of certain end products of metabolism and excess sodium, potassium and chloride ions that may accumulate in the blood.
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acute nephritis
afferent arteriole
aglomerular
arteriole
artificial kidney
bacterial capsule
basal lamina
Berger disease
Bowman capsule
Bowman, Sir William
Bowman's capsule
cake kidney
chronic glomerulonephritis
corpuscle
cortical radiate arteries
diabetic glomerulosclerosis
diffuse glomerulonephritis
fenestrated capillary
Table 3: Showing comparison of mean diameter and number of glomerulus among groups A, B, C and D.
PROTECTIVE EFFECT OF SPINACEA OLERACEA EXTRACT ON CYCLOSPORINE A INDUCED NEPHROTOXICITY IN MALE ALBINO RATS
5 But few researches have addressed the effect of islet transplantation on glomerulus filtration membrane and its precise mechanism.
Islet transplantation restores the damage of glomerulus filtration membrane in a rat model of streptozotocin-induced diabetic nephropathy
39-41] A balance between ECM synthesis and degradation is required for maintaining the structural and functional integrity of the glomerulus.
Plasma and urinary matrix metalloproteinase-9 as a marker for detection of nephropathy in type 2 diabetic patients
Morphometric investigations showed that in this test group (test 2) the size of renal corpuscle and the size of its glomerulus are 9.
Impact of mineral composition of drinking water on the kidneys morphology of white rats
Each of the kidney's nephrons has a glomerulus that filters blood.
Be kind to your kidneys
Collapsing FSGS must be excluded, and the presence of perihilar sclerosis and/or endocapillary hypercellularity in any glomerulus also rules out tip variant [13].
The impact of histologic variants on FSGS outcomes
Creatinine is filtered at the glomerulus but does not get reabsorbed by the renal tubules, so the amount in the blood and urine is a measure of GFR.
Kidney care and renal disease
The renal corpuscle of the nephron consisted of glomerulus and Bowman's capsule.
Histological Alterations in Cyprinus carpio Kidney Due to Sublethal Concentrations of Chromium Hexavalent
The second main area concerns the processes of scarring of the glomerulus and the tubular interstitium: Are these processes connected?
Understanding diabetic kidney disease: current insights
The next-largest immune responses were observed at the cortex and glomerulus, regions of the kidney with large blood supplies and extensive exposure to the recipient's immune system.
Immune System Atlas to speed detection of kidney rejection
IgA nephropathy, the most common cause of renal failure among the primary glomerulonephritides, is characterized by deposition of IgA antibodies in the glomerulus.
Steroid helps boost survival in IgA nephropathy
By definition, patients with WHO class III have less than 50% of the volume of an individual glomerulus or less than 50% of the total number of glomeruli with endocapillary proliferation.
Lupus nephritis: histology, diagnosis, and treatment
Glomerular kidney disease
glomerular layer of olfactory bulb
glomerular proteinuria
glomerular rickets
glomerular syndrome
glomerule
Glomeruli
glomerulitis
glomerulo-
glomerulocystic disease
glomerulocystic kidney disease with hyperuricaemia and isosthenuria
glomerulonephritides
Glomerulonephritis, Acute
glomerulonephropathy
glomerulopathy
glomerulopressin
glomerulosa
glomerulosa cell
glomerulosclerosis
glomerulosclerosis index
glomerulosclerosis score
glomerulotubular
glomerulotubular balance
Glomerulous
glomerulus of mesonephros
glomerulus of pronephros
glomoid
glomus
glomus cell
glomus choroideum
glomus jugulare tumor
glomus tumor
glomus tympanicum tumor
glonoin
glory lily
gloss-
gloss(o)-
glossagra
glossal
glossalgia
glossauxesis
glossectomy
-glossia
Glossina
Glossina morsitans
glomerulonephritis male pseudohermaphroditism-nephroblastoma syndrome
Glomerulonephritis, iga
Glomerulonephritis, membranoproliferative
Glomerulonephritis, membranous
Glomerulosclerosis, focal
glomerulose
glomerulotubular imbalance
Glomerulus (kidney)
Glomerulus (olfaction)
glomiform glands
Glomma
glommed her
glommed him
glommed it
glommed me
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