Elevated HDL concentrations are associated with a low risk of heart disease because they:
A)transport newly absorbed lipids from intestinal cells to the rest of the body.
B)carry cholesterol and triglycerides from the liver to the rest of the body.
C)carry lipids around in the blood more than LDL.
D)take excess cholesterol and phospholipids from the tissues and return them to the liver.
E)take excess cholesterol and phospholipids to the tissues and away from the liver.

Question

Quizplus · Accepted Answer

Elevated HDL concentrations are associated with a low risk of heart disease because they take excess cholesterol and phospholipids from the tissues and return them to the liver. This process is known as reverse cholesterol transport and helps to prevent the buildup of cholesterol in the arteries, reducing the risk of heart disease. HDL particles also have anti-inflammatory and antioxidant properties, which further contribute to their protective effects.

Elevated HDL Concentrations Are Associated with a Low Risk of Heart