Xenbase Image ID: 158240

Blood and Lymphatic vessels. A. The lumen of a small artery is lines with endothelium with a layer of smooth muscle surrounding it. B. Arteries are often accompanied by peripheral nerves. C. Capillaries are composed of a single layer of endothelium, and the lumen is just large enough for an erythrocytes to pass. D-E. Arterioles are small arteries with smooth muscle around them.In longitudinal section, the smooth muscle cells are seen wrapping around the vessel, and are oriented perpendicular to the endothelium nuclei. F. Longitudinal section of a small artery. G. Longitudinal section of a capillary in skeletal muscle. H. A neurovascular bundle consists of a peripheral nerve, an artery, a vein, and a lymphatic vessel. Image from AF Wiechmann and CR Wirsig (2003) "Color Atlas of Xenopus laevis Histology", (page 22, Chapter 2, Cardiovascular system: Figure 3). Copyright 2003. Kluwer Academic Publishers. Reproduced with kind permission from Springer Science & Business Media B.V. Image published in: Color Atlas of Xenopus laevis Histology Larger Image Printer Friendly View

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