These arteries that receive blood directly from the heart-the aorta and the pulmonary artery.
The spatial organization of elastic fibers is highly variable in the extracellular matrix of the different tissues. In arteries and veins, elastic fibers are organized as thick lamellae whereas three types of fibers, oxytalan, elaunin and elastic fibers are observable in the skin. In the mature elastic arteries, each monolayer of smooth muscle cells are separated by one elastic lamella. The regular layering of smooth muscle cells between elastic lamellae has led to the definition of the lamellar unit [13] . Their smooth muscle is less than arteries. Elastic fibers provide recoil which is what you need in arteries to propel the bl … ood forward. Veins lack these which is why large amounts of blood can be stored in them without the walls providing any sort of recoil and keeping pressure low. 4 people found this useful. Elastic arteries are also known as conducting arteries because they carry large volumes of blood away from the heart. They are large vessels with diameters up to 2.5 cm (1 in. …) (Figure 21-2). Elastic fibers (or yellow fibers) are bundles of proteins (elastin) found in extracellular matrix of connective tissue and produced by fibroblasts and smooth muscle cells in arteries. These fibers can stretch up to 1.5 times their length, and snap back to their original length when relaxed. Elastic tissue is classified as connective tissue proper. The elastic fiber is formed from the elastic microfibril (consisting of numerous proteins such as microfibrillar-associated glycoproteins, fibrillin, fibullin, and the elastin receptor) and amorphous elastin. The elastic lamellae are synthesized by the smooth muscle cells in the media of arteries [9] , [10] and [11] . The number of elastic lamellae and the quantity of elastin decreases in the aorta from the heart to the iliac bifurcation [12] . In the muscular arteries, only the internal and external elastic lamellae are clearly discernable; within the media, only a few discontinuous elastic lamellae are present (Fig. 1). Fig. 1. In the mature elastic arteries, each monolayer of smooth muscle cells are separated by one elastic lamella. The regular layering of smooth muscle cells between elastic lamellae has led to the definition of the lamellar unit [13] . The walls of arteries and veins are composed of endothelial cells, smooth muscle cells and extracellular matrix (including collagen and elastin). These are arranged into three concentric layers: intima, media and adventitia. The intima is the inner layer abutting the vessel lumen.  Arteries and veins. The arteries carry blood from the heart while veins return blood to it. With both, their structure is related to their function. In order to see this content you need to have both Javascript enabled and Flash installed. Visit BBC Webwise for full instructions.  No, Arteries have thick muscular walls. Arteries are the blood vessles going away from the heart therefor the blood pressure is higher in these vessles so the walls have to be … thicker. Relative to the walls of arteries, the veins' walls are thinner, because the pressure of the blood in the veins is much lower; so low in fact, that valves are required to prev … ent blood in the veins flowing backwards. Their smooth muscle is less than arteries. Elastic fibers provide recoil which is what you need in arteries to propel the blood forward. Veins lack these which is why large amounts of blood can be stored in them without the walls providing any sort of recoil and keeping pressure low. Relative to the walls of arteries, the veins' walls are thinner, because the pressure of the blood in the veins is much lower; so low in fact, that valves are required to prev … ent blood in the veins flowing backwards. Elastic arteries: These arteries that receive blood directly from the heart-the aorta and the pulmonary artery.: These need to be elastic because: They are relatively thin compared to their diameter. When the heart contracts, and ejects blood into these arteries, the walls need to stretch to accommodate the blood surge, storing energy. The arterial hydrostatic pressure that results from ventricular contraction is the 'systolic blood pressure' (systole is greek for contract).
http://www.sciencedirect.com/science/article/pii/S0369811414000340 http://www.answers.com/Q/What_is_the_function_of_the_elastic_fibers_found_in_an_arterys_walls https://en.wikipedia.org/wiki/Elastic_fiber http://www.sciencedirect.com/science/article/pii/S0369811414000340 http://radiopaedia.org/articles/histology-of-blood-vessels http://www.bbc.co.uk/schools/gcsebitesize/science/21c/keeping_healthy/heartdiseaserev2.shtml http://www.answers.com/Q/Do_veins_have_thick_walls_of_elastic_fibers_and_smooth_muscles http://www.answers.com/Q/Do_veins_have_thick_walls_of_elastic_fibers_and_smooth_muscles http://www.histology.leeds.ac.uk/circulatory/arteries.php
what do elastic fibres do in arteries