1
Question
Which of the following has no muscular walls?
Which of the following has no muscular walls?
Open in App
Solution
The correct option is A Capillary
The blood vessels responsible for the transportation of blood from and to the heart have muscular walls to undergo contraction and relaxation. This maintains the blood pressure. So, arteries, arterioles, veins and venules have the muscular walls. However, capillaries are meant to provide the surface for the exchange of nutrients, gases, medicines, waste between the blood and the tissues. So, they must have thin walls to allow such diffusion. Therefore, their walls are made of thin squamous epithelium.Hence, the correct answer is 'Capillary'
The blood vessels responsible for the transportation of blood from and to the heart have muscular walls to undergo contraction and relaxation. This maintains the blood pressure. So, arteries, arterioles, veins and venules have the muscular walls. However, capillaries are meant to provide the surface for the exchange of nutrients, gases, medicines, waste between the blood and the tissues. So, they must have thin walls to allow such diffusion. Therefore, their walls are made of thin squamous epithelium.
Hence, the correct answer is 'Capillary'
Suggest Corrections
0
Similar questions
View More
Join BYJU'S Learning Program
Explore more
Join BYJU'S Learning Program
