Related terms: Lung Volumes; Elastin; Functional Residual Capacity The artery walls contain collagen and elastic tissues which allow it to stretch and recoil, where as the veins do not have as much connective tissue containing collagen fibres. Elastic recoil, neointima formation and vessel narrowing after balloon angioplasty or stent implantation were compared in 17 non-atherosclerotic New Zealand White rabbits. © 2019, Royal Society of Biology, 1 Naoroji Street, London WC1X 0GB Registered Charity No. As elastic vessels become progressively smaller, the pulsatile nature of blood flow is more a result of elastic recoil rather than the heat beat itself. Elastic recoil means the rebound of the lungs after having been stretched by inhalation, or rather, the ease with which the lung rebounds. Except where noted, content and user contributions on this site are licensed under CC BY-SA 4.0 with attribution required. brachial artery. An elastic artery is also known as a conducting artery, because the large diameter of the lumen enables it to accept a large volume of blood from the heart and conduct it to smaller branches. Relate the observations from this investigation to information about the fibres making up the walls of arteries and veins. Diastolic recoil of large elastic arteries determines the diastolic pressure . You can explore tissues using microscopy, and by looking at the overall properties of suitable samples. Eye protection is needed when stretching blood vessels in case of ‘flyback’ of bits of animal tissue if the tissue breaks. The elastic recoil of the vascular wall helps to maintain the pressure gradient that drives the blood through the arterial system. Aorta and pulmonary artery are the best examples of the elastic arteries in our body. The pulmonary arteries, the aorta, and its branches together comprise the body's system of elasticarteries. More smooth muscle in tunica media. arteriosclerosis. During diastole, the artery walls recoil, helping to smooth the flow of blood through the vessel. The lungs' rebound from the stretch of inhalation that passively removes air from the lungs during exhalation. Capillaries Aortic pressure is highest at the aorta and becomes less pulsatile and lower pressure as blood vessels divide into arteries, arterioles, and capillaries such that flow is slow and smooth for gases and nutrient exchange. What does ELASTIC ARTERY mean? Factors Affecting Pulmonary Ventilation: Compliance of the Lungs, Functional Anatomy of the Respiratory System, A low lung compliance means that the lungs are "stiff" and have a higher than normal level of, A high lung compliance means that the lungs are too pliable and have a lower than normal level of, Exhalation of air also becomes much more difficult because the loss of, High lung compliance is commonly seen in those with obstructive diseases, such of emphysema, in which destruction of the, Forced exhalation is often used as an indicator to measure airway health, as people with obstructive lung diseases (such as emphysema, asthma, and bronchitis) will not be able to actively exhale as much as a healthy person because of obstruction in the conducting zones from inhlation, or from a loss of, The pulmonary arteries, the aorta, and its branches together comprise the body's system of, Type II (Great Alveolar) cells: These are the site of surfactant production in the lungs, making them critical for maintaining the, The surfactant produced by type II epithelial cells is very important for maintaining the, Breathing includes several components, including flow-resistive and, There are two types of work conducted during respiration: flow-resistive and, When the respiratory rate is decreased, the flow-resistive work is decreased and the, The overall compliance of the lungs is increased, because as the alveolar walls are damaged, lung, Explain the roles played by surfactant, flow-resistive and, The primary reason that expiration is passive is due to the, On the other hand, molecules do not undergo, Dense connective tissue is divided into 1) dense regular, 2) ( about 2 mm ) of artery and vein tissue ( Note 3 ) not return to their original is... 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