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Activity 1.6 Investigating arteries and veins Student A1.06S Questions Q1 How do the results for artery and vein compare when looking at: a % change in length on loading? b return to the original length on unloading? Q2 What are the main properties of: a elastic fibres b collagen?
Learning Objectives. Distinguish the elastic artery from the muscular artery. Key Points. Elastic arteries include the largest arteries in the body, those closest to the heart. They give rise to medium-sized vessels known as muscular, or distributing, arteries.
21 Ιουν 2024 · The elastic recoil of the vascular wall helps to maintain the pressure gradient that drives the blood through the arterial system. An elastic artery is also known as a conducting artery, because the large diameter of the lumen gives it a low resistance and enables it to accept a large volume of blood from the heart which is conducted to smaller ...
1 Αυγ 2018 · Large, elastic arteries are composed of cells and a specialized extracellular matrix that provides reversible elasticity and strength. Elastin is the matrix protein responsible for this reversible elasticity that reduces the workload on the heart and dampens pulsatile flow in distal arteries.
Take a look at this cross-section through an elastic artery, and identify the three main layers - tunica intima, tunica media and tunica adventitia. Elastic arteries: These arteries that receive blood directly from the heart - the aorta and the pulmonary artery.:
26 Δεκ 2019 · Top, the typical nonlinear relation between luminal pressure and area in large elastic arteries, explained by the progressive shift in load bearing from elastin to collagen fibers. Data translate into distensibility and pulse wave velocity (PWV) with the use of the Bramwell-Hill relation.
Learning Objectives. By the end of this section, you will be able to: Compare and contrast the three tunics that make up the walls of most blood vessels. Distinguish between elastic arteries, muscular arteries, and arterioles on the basis of structure, location, and function.
