glomerular filtration


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Related to glomerular filtration: tubular reabsorption

glomerular filtration

the renal process whereby fluid in the blood is filtered across the capillaries of the glomerulus and into the urinary space of Bowman's capsule.

filtration

passage through a filter or through a material that prevents passage of certain molecules, e.g. capillary wall, blood-brain barrier, radiographic grid.

filtration angle
developmental or acquired distortion of this part of the eye is the common cause of glaucoma. It is the space bounded by the sclera externally, the ciliary muscle posteriorly, the root of the iris medially and the anterior chamber of the eye anteriorly. Within the space is the filtering mechanism, a mass of anastomosing mesodermal spindle cells with many perforations between them.
filtration barrier
the physiological function which limits the passage of small molecules through the renal corpuscle.
glomerular filtration
the process by which glomerular filtrate is formed, involving the balance of pressures across the walls of the glomerular capillaries.
inherent filtration
attenuation of the primary x-ray beam as a result of its passage out of the x-ray tube through the insulating medium and tube window.
filtration membrane
the membrane which stretches across the filtration slits in the renal corpuscle.
filtration pressure
the net driving force which pushes fluid into tissue spaces and out of vascular sites; the net result between capillary osmotic pressure and intravascular hydrostatic pressure.
filtration slits
openings in the glomerular corpuscle which are part of the filtration process in the renal glomerulus.

glomerular

pertaining to or of the nature of a glomerulus, especially a renal glomerulus.

glomerular basement membrane
the structure located between endothelial cells of renal capillaries and the visceral epithelial cells of the glomerulus. It functions as a barrier to filtration of large molecules.
glomerular capsule
Bowman's capsule.
glomerular crescent
see glomerular crescent.
glomerular filtrate
the acellular low-protein ultrafiltrate of plasma that passes the glomerulus.
glomerular filtration
glomerular filtration rate
varies widely depending on diet. It is the ability of the renal tubules to vary their absorbing capacity that ensures there is no great electrolyte loss during the periods of high rates of glomerular filtration.
glomerular lipidosis
characterized by the presence of large foam cells in glomerular tufts in dogs. They appear to have no disease significance.
glomerular permeability
in normal subjects the capillary endothelium of the glomerulus, by virtue of its fenestration, is permeable to all blood constituents except blood cells and colloids so that the glomerular filtrate has a close similarity to plasma and interstitial fluid but has a lower protein concentration than both of them.
References in periodicals archive ?
Comparison of the glomerular filtration rate in children by the new revised Schwartz formula and a new generalized formula.
Glomerular filtration rate estimated from the uptake phase of 99mTc-DTPA renography in chronic renal failure.
All of these studies have suggested that it is possible to inhibit the impairment of glomerular filtration barrier and delay the progression of glomerular sclerosis by regulating the synthesis of TGF-b1.
The decrease in the availability of small vessels in the kidney can transiently or permanently deteriorate renal blood flow, glomerular filtration ability, and tubular function, which was suggested as a possible starting point of RAS.
Increased urinary cystatin C reflects renal tubular impairment independent of glomerular filtration rate.
The estimated glomerular filtration rate (eGFR) was calculated using the following formula [10]:
Estimating glomerular filtration rate from serum creatinine and cystatin C.
Creatinine, urinary albumin levels, serum/urine cystatin C and estimated glomerular filtration rate (eGFR by MDRD [Modification of Diet in Renal Disease] and CKD-EPI [Chronic Kidney Disease Epidemiology Collaboration] equations) were determined.
The relationship between L-arginine/ADMA ratio and coronary collateral development in patients with low glomerular filtration rate.
Study was aimed at an early detection of subclinical disorders in renal function in patients with ischemic heart disease (IHD), post-infarction cardiosclerosis (PICS) complicated by II-III functional class (FC) of chronic heart failure (CHF) by determination of a level of enzymuria and glomerular filtration rate (GFR).
Estimated Glomerular Filtration rate (eGFR): A Serum Creatinine-Based Test for the Detection of Chronic Kidney Disease and its Impact on Clinical Practice (Letter to the Editor).
1800) evaluated the association of blood cadmium with estimated glomerular filtration rate (eGFR) in a population of 1,909 adults 20 years of age who participated in the 2005 Korean National Health and Nutrition Examination Survey.