All of the following vessels are valveless EXCEPT:
Correct Answer: Inferior vena cava
Description: Ans. A Inferior vena cavaRef: Gray's 41st ed. pg. 1021, 1027, 1167* Most of the venous system has valves to prevent backflow of blood in order to maintain venous return.* IVC has only one valve present at the junction where it drains into right atrium. This valve is named Eustachean valve* The besian valve is present in coronary sinus.* Veins contain valves to help keep blood flowing toward the heart at all times.* Veins which are valveless can be remembered as: IPSS# Internal juglar vein# Pulmonary vein, Portal vein# Superior vena cava# Sinuses of brain
Category:
Anatomy
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