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Blood Vessels:


The circulatory system consists of ……. types of vessels.
a) two                         
b) three
c) four                        
d) five

b

Explanation: 1. Arteries, 2. Veins and
3. Capillaries



The blood vessels which carry blood away from the heart are called…….
a) lacteals                   
b) arteries
c) veins                                   
d) capillaries

b

Explanation: all the arteries transported oxygenated blood except pulmonary artery which carry deoxygenated blood from heart to the lungs for oxygenation



The wall of the artery is made up of …… layers.
a) two                         
b) three
c) four                        
d) five

b

Explanation: 1. Tunica externa
2. Tunica media and 3. Tunica interna


What is the average blood pressure in veins?
a) 2mm Hg                 
b) 100mm Hg
c) 20mm Hg               
d) 200mm Hg

b

Which of the following layer/s of artery wall is/are made up of smooth muscles and fewer elastic fibers?
a) tunica externa        
b) tunica media
c) tunica interna         
d) all of these

b

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