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By intussusception a new blood vessel is created by splitting of an existing blood vessel in two. [ 1 ] [ 2 ] [ 3 ] Intussusception occurs in normal development as well as in pathologic conditions involving wound healing, [ 4 ] tissue regeneration, inflammation as colitis [ 5 ] [ 6 ] or myocarditis, [ 7 ] lung fibrosis, [ 8 ] and tumors [ 9 ...
Since the lost blood was replaced with a suitable fluid, the now diluted blood flows more easily, even in the small vessels. As a result of chemical changes, more oxygen is released to the tissues. These adaptations are so effective that if only half of the red blood cells remain, oxygen delivery may still be about 75 percent of normal. A ...
The angiogenesis process forms new blood vessels form blood vessels that have already been through vasculogenesis. [9] The former requires differentiation of endothelial cells from hemangioblasts and then the further organization into a primary capillary network. The latter occurs when new vessels are built from preexisting blood vessels. [8]
Portal venous congestion causes venous blood leaving the stomach and intestines to be diverted along auxiliary routes of lesser resistance in order to drain to systemic circulation. With time, the small vessels that comprise a collateral path for porto-caval circulation become engorged and dilated.
In medicine, collateralization, also vessel collateralization and blood vessel collateralization, is the growth of a blood vessel or several blood vessels that serve the same end organ or vascular bed as another blood vessel that cannot adequately supply that end organ or vascular bed sufficiently.
A vascular anomaly is a localized defect in blood vessels or lymph vessels. These defects are characterized by an increased number of vessels, and vessels that are both enlarged and heavily curved. Some vascular anomalies are congenital, others appear within weeks to years after birth, and others are acquired by trauma or during pregnancy ...
Blood first passes to plasma filter. Plasma then passes on to immunoadsorption column before returning to patient. As the plasma is passing through one column, the second column is being regenerated. Once the first column is saturated the flow switches to the second column while the first is then regenerated.
A circulatory anastomosis is a connection (an anastomosis) between two blood vessels, such as between arteries (arterio-arterial anastomosis), between veins (veno-venous anastomosis) or between an artery and a vein (arterio-venous anastomosis). Anastomoses between arteries and between veins result in a multitude of arteries and veins ...