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Blood pressure in the glomerulus in very high. Hope this helps!!!!!!!!!! :D
the pressure in glomerulus creates higher net filtration pressure resulting large amount of filtration formed.
glomerulus
The glomerulus.
The diameter of the afferent renal arteriole narrows progressively more and more into the glomerular capillaries, with the same blood flow, leading to an increase in pressure within the glomerulus. This is so that the high pressure can force solutes and water across into the Bowman's capsule for the renal tubules.
The cluster of capillaries that forms a glomerulus arises from an afferent arteriole. After passing through the glomerular capillaries, blood (minus any filtered fluid) enters an efferent arteriole whose diameter is smaller than that of the afferent vessel. This is instead of entering a venule, the usual circulatory route. The efferent arteriole resists blood flow to some extent, which backs up blood into the glomerulus, increasing pressure in the glomerular capillary.
http://en.wikipedia.org/wiki/Angiotensin
If your blood pressure is too high, as in the case of someone with hypertension, the glomerulus of the nephron can burst rendering that nephron useless. Without a glomerulus, the nephron cannot achieve pressure filtration, which is one of the main functions of the kidney.
The glomerulus is a cluster of capillaries that can be found in the kidney. Each cluster is next to a Bowman's capsule, which is the "filter unit" of the nephron. Blood passes from the renal artery into the glomerulus at high pressure, allowing small substances to diffuse into the nephron, via the Bowman's capsule.
1250ml/min - Blood flows to the kidneys through the right and left renal arteries. Inside each kidney these branch into smaller arterioles. The blood is at very high pressure and flows through the arterioles into tiny knot of vessels called the Glomerulus. These are located in the nephrons. From the glomerulus the blood pressure drops and the blood flows into arterioles which coil around the nephrons. These in turn connect to a series of small veins. These vessels reunite and ultimately form the renal vein.
It builds up because the calibre of the efferent arteriole is less than that of the afferent arteriole. The cappilary pressure is opposed by the lower osmotic pressure or the blood and the lower filtrate hydrostatic pressure in the glomerular capsule.
The common name for hypertension is high blood pressure. To be diagnosed with high blood pressure, a person typically has three or more readings of 140/90 or higher.