Cause of vasodilatation in spider nevi –
Correct Answer: Estrogen
Description: Ans. is 'a' i.e., Estrogen Spider nevi refer to dilated, visible small blood vessels in the skin.- It is called spider nevi because it consists of central "feeding" blood vessel with numerous fine radiating legs emanating from the central body.Spider nevi are caused due to vasodilatation of vessels and are usually associated with cirrhosis.Cirrhosis is associated with vasodilatation and hyperdynamic circulation."The cause of vasodilatation in cirrhosis is uncertain but it is believed to be related to the increased level of estrogen in the body. Estrogen is a female sex hormone which is metabolized by liver. Thus in liver diseases its level tends to increase which is believed to cause vasodilatation, resulting in spider naevi.
Category:
Medicine
Get More
Subject Mock Tests
Practice with over 200,000 questions from various medical subjects and improve your knowledge.
Attempt a mock test nowMock Exam
Take an exam with 100 random questions selected from all subjects to test your knowledge.
Coming SoonGet More
Subject Mock Tests
Try practicing mock tests with over 200,000 questions from various medical subjects.
Attempt a mock test now