Αποτελέσματα Αναζήτησης
This activity has two parts. In part A students stretch blood vessels (a piece of artery and a piece of vein) and measure how elastic they are. In part B they look at the histology of the blood vessels using a microscope.
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?
Elastic arteries include the largest arteries in the body, those closest to the heart, and give rise to the smaller muscular arteries. The pulmonary arteries, the aorta, and its branches together comprise the body’s system of elastic arteries.
21 Ιουν 2024 · Distinguish between elastic arteries, muscular arteries, and arterioles on the basis of structure, location, and function; Compare and contrast the three types of capillaries on the basis of structure, location, and function; Describe the basic structure of a capillary bed, from the supplying metarteriole to the venule into which it drains
Arteries have muscular/elastic walls to stretch with pulse flow ; veins have valves to prevent backflow Valves in veins and the heart ensure the circulation of blood is unidirectional by preventing back flow
21-1 Blood Vessels. The Tunica Intima (Inner Layer) Includes: The endothelial lining. Connective tissue layer. Internal elastic membrane. In arteries, is a layer of elastic fibers in outer margin of tunica intima.
Distinguish between elastic arteries, muscular arteries, and arterioles on the basis of structure, location, and function; Describe the basic structure of a capillary bed, from the supplying metarteriole to the venule into which it drains; Explain the structure and function of venous valves in the large veins of the extremities
