Question

The following are the layers of the wall of veins. Arrange them in correct sequence from outer side to inner side.
(included in question content) 
(I) Endothelium  
(II) Elastic lamina
(III) Smooth muscles 
(IV) Fibrous tissue layer
 

• A. IV, III, II, I
• B. I, II, III, IV
• C. II, IV, III, I
• D. IV, III, I, II

Hint:

To remember the vein wall layers in sequence, use the mnemonic: {F}our {S}imple {E}xamples {E}nd (Fibrous, Smooth, Elastic, Endothelium).

Answer 1

The Correct Option is A

The wall of veins is composed of multiple layers that help maintain venous structure and function. From outermost to innermost, the correct anatomical order is:

Fibrous tissue layer (IV) – provides mechanical strength
Smooth muscles (III) – controls vessel diameter
Elastic lamina (II) – allows elasticity
Endothelium (I) – innermost layer in direct contact with blood

Hence, the correct sequence from outer to inner is IV, III, II, I.