Histologic analysis typically displays various degrees of endothelial cell injury, with or without hemorrhage and thrombosis of capillaries, arterioles
, and arteries; the features of the vessels are similar to those seen in renal TA-TMA.
Red blood cells are normally round and flexible, which enables them to deform and pass through narrow vessels such as arterioles
2,6,10) In the retinal vasculitis type, the refractive or nonrefractive yellowish Gass plaques which may be evident in the retinal arterioles
are an important diagnostic finding for the disease.
Control Group A revealed no arteriole
with hyalinization (Figure-1).
The subendothelial layer of the intima in arteries and arterioles
contains a sheetlike layer or lamella of fenestrated elastic material called the internal elastic membrane.
The development of renal failure due to arterial hypertension is believed to result both from ischemia due to changes in preglomerular arteries and arterioles
and from the effects of increased intraglomerular pressure (hyperperfusion), which inevitably leads to functional and subsequently structural glomerular changes and progressive loss of renal function.
Yet these tiny arterioles
and venules deliver oxygen and nutrients to energy-hungry brain cells and carry away wastes.
Angiotensin II directly increases glomerular filtration pressure by causing constriction of the efferent arterioles
Histological comparison of layer media thickness of pulmonary Arterioles
between cobb-vantress and ross broiler chicken exposed To hypoxia
Polyvinyl alcohol and gelatin particles are the most commonly used materials, They can reach the most distal points at the smallest arteriole
level via blood flow and obliterate the arterioles
Angiotensin-converting enzyme inhibitors (ACE-I) and angiotensin-receptor blockers (ARBs) decrease renal blood perfusion by inhibiting angiotensin II-mediated vasoconstriction at the efferent arteriole
The glomerular capillaries are supplied by the afferent arteriole
; blood then flows out of the glomerular capillaries via the efferent arteriole
24] The afferent arteriole
resistance will be reduced by inhibition of angiotensin II, or by reducing the sympathetic input.
9) Due to the relative high pressure kon the arterial side of the circulation, this blood mixture contains a relatively greater proportion of blood from the arteriole
side of the capillary bed than from the venule side; and, thus, a "capillary-blood" sample obtained by skin puncture approximates closer to arterial blood than venous blood.
PAH is that peripheral arteriole
lumen of pulmonary artery where blood pumped from heart to lung gets narrow, and it makes difficult for blood to flow.