QUESTION -
ANSWER-  the
correct statement is - (1) arteriosclerosis is a group of
disorders.
EXPLANATION
-
ARTERIOSCLEROSIS
-
- Arteriosclerosis refers to a group of disorder which cause the
thickening, hardening and loss of elasticity in arterial
walls.
 
- Typical arteriosclerosis occurs in elderly person.
 
- In one type calcium gets deposited in the tunica media of
arteries.
 
- In another type the lumen of arteries become narrow.
 
- Hardening of arteries due to thickening along with deposition
of calcium salt with cholesterol.
 
- Can take place in medium to small arteries.
 
- No plaque formation occurs.
 
- Artery become hard, looses it's capacity of distention and may
ruptured.
 
ATHEROSCLEROSIS
--
- its is a irregular thickening of arterial walls and narrowing
of their lumen due to deposition of yellow plaque or Atheromas in
their tunica intima or inner part of tunica media.
 
- Atheromas consists of cholesterol and other lipoid material.
They are formed from low density lipoproteins  
 
- Plaques are formed due to proliferation of smooth muscle of
their inner wall of arteries.
 
- Takes place in lumen of large and medium size arteries of
body.
 
- Atherosclerosis is also considered as a type of
arteriosclerosis.
 
Other option -
Option (2) - it is wrong. Arteriosclerosis is broader term than
atherosclerosis.
Option (3) - it is also wrong. Atherosclerosis is considered as
a type of arteriosclerosis.
Option (4) - it is incorrect. Atheromas occurs in
atherosclerosis not in arteriosclerosis.