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Layers of Blood Vessels

Tunica intima...

Question

Tunica intima is made up of ..........

A

Squamous epithelium

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B

Smooth muscle

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C

Elastic fibres and collagen fibres

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D

Fibrous connective tissue

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Solution

The correct option is B Smooth muscle
Arteries and veins are made of three layers. They are outer Tunica externa , middle Tunica media, and inner Tunica intima. Tunica intima is made up of smooth muscles and has direct contact with the blood flow.
So, the correct answer is 'Smooth muscle'.

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