A- What are varicose veins? B- Why are valves present in veins but not in arteries?
A- What are varicose veins? B- Why are valves present in veins but not in arteries?
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Transcribed Image Text:A- What are varicose veins?
B- Why
are valves present in veins but not in arteries?
Expert Solution
Introduction
Blood is a fluid in the body that transports oxygen and nutrients to the cells and carries the metabolic wastes away from the cell.
The blood is contained in a tube like structures called blood vessels in a closed system. There are various types of blood vessels of which arteries and veins are the major blood vessel types.
The arteries are the blood vessels that carry oxygen-rich blood away from the heart to the other parts of the body, while the veins are those that carry oxygen-depleted(less oxygen) blood to the heart from other parts of the body for oxygenation.
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