Anatomy of the Vascular System PDF
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Uploaded by LuckyAmetrine2629
Misurata University
Dr. Joseph Amin
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Summary
This document provides an overview of the vascular system, explaining the different types of vessels, their structure, and functions. It includes detailed descriptions of arteries, veins, and capillaries, highlighting their roles in circulation and emphasizing the differences in their structure and function.
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Vascular System By Dr: Joseph Amin Ass. prof of anatomy & embryology 1 C.V.S Heart Blood Blood vessels Circulation 2 The Blood vessels ...
Vascular System By Dr: Joseph Amin Ass. prof of anatomy & embryology 1 C.V.S Heart Blood Blood vessels Circulation 2 The Blood vessels Arteries Large sized Vessels that carry blood from the heart to various organs & tissues medium sized They carry oxygenated blood except pulmonary and umbilical arteries Small sized The wall of arteries consists of Tunica intima ( inner smooth endothelial lining) Tunica media (middle muscular & elastic fiber layer) Tunica adventitia (outer fibrous coat) Arteries could be: Elastic arteries Muscular arteries Arterioles (large sized) (medium sized) (small sized) Very thick media with thick media with Media contains only smooth abundant elastic fibers predominance of smooth muscles muscles and few elastic fibers Conducting arteries Distributing arteries Resistance arteries maintain Elastic recoil maintain blood Regulate blood flow to various diastolic blood pressure flow during diastole organs and body regions Regulate blood flow to tissues Aorta and its big branches Arteries of the limbs Smaller branches inside organs pulmonary trunk Arteries of the organs and muscles Blood vessels which supply the wall of arteries are called vasa vasorum Sympathetic nerve supply to the wall of blood vessels causes vasoconstriction EXCEPT in brain, heart and skeletal muscles 5 ﻋﺎدة إﻟﻰ ٮ&ﻮﺳيﻊ اﻷوﻋٮ
