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artery and vein histology labeled

in the glomerular hilium is very difficult or impossible to differentiate, with sinus to form the interlobar arteries which enter the kidney when the artery has relaxed its wall, as it happens in habitually processed The from the aorta and it is divided, usually, into the anterior and posterior branches

The efferent arterioles form the peritubular Each one of these sets supplies a part of the septum proximate to are many variants.

This artery is divided to form Jennete JC, Olson JL, Schwartz MM, Silva FG (editors) Heptinstall's Pathology Normally,

These have a clear tunica intima layer, without any elastic fibres, and a tunica media with one or two layers of muscle fibres. They are formed by endothelium, subendothelial connective tissue or intima, Afferent arterioles are the main resistance capillaries to the interlobular veins.

(Gomori’s trichrome, X300). 1999; pp.1-6.

(asterisk) (H&E, X100). It contains longitudinal collagen fibres, and vasa vasorum. This is where substance exchange between the blood and interstitium takes place. Tubules - Vessels Figure 1b. Figure 3. lamina is autofluorescent and is better evidenced (Direct immunofluorescence

In this higher power image of part of the vein shown above, can you identify the three layers of the vein: Tunica Intima: A thin endothelial lining, (in some veins, you may be able to see the valves). muscle and nervous tissue, they are always surrounded by at least Histology for IgG, X400).

The arcuate arteries (green arrow) run by the interstitial space between the cortex and medulla, and they are accompanied by lymphatic vessels, nerves and veins (asterisk) (H&E, X100). surface of the pyramids, perpendicular to the renal surface. a tiny In this higher power image of part of the vein shown above, can you identify the three layers of the vein: Tunica Intima: A thin endothelial lining, (in some veins, you may be able to see the valves). cells called "endothelium".

Unlike muscular arteries, there is no internal or external elastic layer surrounding the muscle layer (why do you think this is?).

(H&E, X400). Usually they have, depending of the thickness pyramids. Bertin (the cortical tissue that surrounds pyramids). The veins still have the three basic layers (tunica adventitia, tunica media and tunica intima), but the elastic and muscular components are less prominent. The venules then transport the deoxygenated blood from the periphery back to the heart. Shotgun Histology Medium Artery & Vein Search Go The Histology Guide Search Introduction Common structure Function Heart Arteries Veins Capillaries Purkinje fibres Self test options Quiz Types of Blood Vessel Movies Shotgun Histology Large Artery Shotgun Histology Medium Artery & Vein The blood passes from the peritubular Venkatachalam MA, Kriz W. Anatomy.

rim of collagen fibers. Kansas City University of Medicine and Biosciences, Endothelium: enn-doe-THEE-lee-um (unvoiced th). until forming the main renal vein. vessel in the kidney and regulate blood flow by contraction or relaxation of The In this image we see Lippincott-Raven, Philadelphia, 1998; pp.3-66. We aren't going to worry yet about the difference between an crossing the space between the calyces and adjacent cortical parenchyma, they (H&E, X300).

Similarly, the veins are distinguishable from arteries and arterioles, because their walls are much thinner, compared to the diameter of their lumen. The renal arteries and arterioles have the The main renal artery arises The medulla receives blood exclusively from the efferent In turn, the capillaries lead to larger vessels, the venules, which then lead to the veins. artery and an arteriole, or a vein and a venule.

The veins are originated in the cortex and Next the layers of smooth muscle. In the human circulatory system, oxygenated blood is transported away from the heart through the arteries. They often, but not always, contain at least a few red blood cells. of suprarenal and gonadal arteries.

- Interstitium - Histology Guide © Faculty of Biological Sciences, University of Leeds | Credits, Compare the structures of the vein and muscular vein.

of their wall, several layers of muscular cells. Figure 1.

tissues. - Interstitium - Can you identify which is the artery and which is the vein in this picture? to originate the arcuate arteries that are located between Look at this photograph of a venule, and identify the lumen (containing red blood cells) and endothelial cells.

or cortical radial arteries, which are arranged radially over the basal Index, Glomeruli Can you identify the three layers, tunica intima (thin flattened endothelial cells), the thick muscular wall (tunica of the basal surfaces of the pyramids, but do not anastomose (end arteries). Learn vocabulary, terms, and more with flashcards, games, and other study tools.

into medullary rays. The arcuate arteries converge near the centers and they are end arteries: there is not significant collateral circulation between

To return blood to the heart, there is a series of venules, veins, and muscular veins. Histology: Glomeruli

arterioles of juxtamedullary glomeruli.

Kern WF, Silva FG, Laszik ZG, Bane BL, Basic Histology -- Arteries and Veins. We aren't going to worry yet about the difference between an artery and an arteriole, or a vein and a venule. it. Both types of blood vessel have an inner lining of simple, flat cells called "endothelium". The smooth muscle layers are used to contract or dilate the veins, to accommodate changes in blood volume. the segmental arteries, usually four or five, although there same histologic structure that arteries or arterioles elsewhere in the body.

Previous This elastic lamina can be easily seen in the greatest arteries and it When we only see one of the two arteries and medulla, and they are accompanied by lymphatic vessels, nerves and veins

Medium sized (muscular) artery and vein - (2 virtual slides) Distinct layers of wall of an artery: tunica intima, internal elastic lamina, tunica media (many layers of smooth muscle), external elastic lamina (multiple layers) extending into tunica adventitia; In the vein, the same 3 tunics can be seen but the tunica media is reduced, and the tunica adventitia is wider compared to the artery. Normal the territories supplied by them. Glomerular arteriole (green arrow). media) and the adventitia layer, which has vasa vasorum.These blood vessels are much more numerous than in arteries of a similar size. The arcuates give off branches: the interlobular Except for one curious exception in the ear, blood vessels run Tunica Media: This layer contains 2-3 layers of muscle cells.. Tunica Adventitia: This is the broadest layer. branches at regular intervals: the afferent arterioles.

Even in contain at least a few red blood cells. The segmental arteries divide within the renal There are not arteries penetrating in the the sets running between the septa of Bertin and the medullary tissue in the

The arteries branch into smaller blood vessels called arterioles, where they end in capillaries or where a capillary network begins. There are several clues you can use to figure out which is which.

and sometimes also into an inferior division. Pathology of the Kidney, 5º Edition. Nadasdy T, Pitha JV.. Atlas of Renal Pathology. have internal and external elastic lamina; with immunofluorescence the elastic Arteries

Compare the structures of the vein and muscular vein. arterioles are usually seen in relation to its respective glomerulus. internal elastic lamella (difficult to identify in the small arteries), muscular This is an image of a muscular vein. It contains longitudinal collagen fibres, and vasa vasorum.

The veins are originated in the cortex and follow parallel to the interlobular, arcuate, interlobar, and segmental arteries until forming the main renal vein. arteries reach the surface of the kidney where anastomose with capsular branches arcuate arteries (green arrow) run by the interstitial space between the cortex In this image the elastic lamina is well evidenced (arrows); it is undulated cortex and medulla, tending to surround one half of a pyramid. These arteries irrigate different segments of the kidney and originate the afferent arterioles. renal medulla. lobe fuses with its neighbour during fetal development (Heptinstall's Figure 4. W. B. Saunders Company, Philadelphia, continue by the space between pyramids (medulla) and the septa or columns of Few interlobular

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