Md3001 part 1 Questions and Correct Answers | Latest Update | A+
Pericardium Ans: Membrane surrounding the heart epicardium Ans: visceral layer of serous pericardium Svc, ivc, coronary sinus Ans: Where does the right atrium receive blood from? fossa ovalis Ans: remnant of foramen ovale chordae tendineae Ans: thin bands of fibrous tissue that attach to the valves in the heart and prevent them from inverting papillary muscles Ans: responsible for pulling the atrioventricular valves closed by means of the chordae tendineae Tunica intima Ans: Contains endothelium, sub-endothelial layer, internal elastic membrane Tunica media Ans: Contains smooth muscle and elastic fibres, external elastic membrane Tunica external Ans: Contains collagen fibres, vasa vasorum and nerves Endothelium Ans: Simple squamous epithelium lining vessels Vasa vasorum Ans: Small blood vessels, providing for the larger vessels. Nourish outer layers and respond to nutrient needs Elastic arteries Ans: Thick-walled arteries near the heart; contains more elastin. Large lumen/low resistance Muscular arteries Ans: Thickest tunica media layer, contains more smooth muscle and less elastic tissue. Active in vasoconstriction arterial anastomosis Ans: Ensure supply to every part of the tissue despite any position the body is in Terminal arterie
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