HDLs AND LDLs

Question 1

WHAT ARE THE TWO MAIN TYPES OF CHOLESTEROL IN THE BLOOD?

Answer 1

• LDL (LOW DENSITY LIPOPROTEIN) CHOLESTEROL
• HDL (HIGH DENSITY LIPOPROTEIN) CHOLESTEROL

Question 2

WHAT DOES LDL CHOLESTEROL DO?

Answer 2

TRANSPORT CHOLESTEROL FROM THE LIVER TO THE BLOOD (WHERE IS CAN CONTRIBUTE TO ATHEROMA FORMATION)

Question 3

WHAT DOES HDL CHOLESTEROL DO?

Answer 3

TRANSPORTS CHOLESTEROL FROM THE BLOOD BACK TO THE LIVER

Question 4

WHAT IS HDL CHOLESTEROL BENEFICIAL FOR?

Answer 4

REDUCING CARDIOVASCULAR DISEASE RISK

Question 5

WHAT IS A HIGH LDL:HDL RATIO?

Answer 5

A RISK FACTOR FOR CARDIOVASCULAR DISEASE

Question 6

IF SOMEONE HAS I HIGH PROPORTION OF LDLs IN THEIR BLOOD, WHAT DOES THAT MEAN?

Answer 6

IT IS MORE LIKELY THAT FATTY MATERIAL WILL BE DEPOSITED IN THE WALL OF THE ARTERY (LEADS TO THE FORMATION OF A BLOOD CLOT)

Question 7

WHAT ARE THE STEPS OF A BLOOD CLOT DUE TO HIGH LDLs?

Answer 7

• LDLs DEPOSIT LIPIDS IN THE ARTERY WALL
• THE LUMEN OF THE ARTERY NARROWS
• MORE LIPIDS ACCUMULATE IN THE ARTERY WALL + FORM AN ATHEROMA
• REDUCES BLOOD FLOW + CAN CAUSE A BLOOD CLOT
• LESS OXYGEN AND GLUCOSE ARE TRANSPORTED TO ORGANS = LESS RESPIRATION AT THE ORGANS

Question 8

WHAT CAN LEAD TO A HEART ATTACK?

Answer 8

THE FORMATION OF ATHEROMA IN THE CORONARY ARTERY

Question 9

HOW DOES THE FORMATION OF ATHEROMA IN THE CORONARY ARTERY LEAD TO A HEART ATTACK?

Answer 9

THERE WILL BE REDUCED BLOOD FLOW TO THE CARDIAC MUSCLE = LESS OXYGEN AND GLUCOSE REACH THE CARDIAC MUSCLE = LOWER RATE OF RESPIRATION (NOT ENOUGH ATP IS PRODUCED)

Question 10

HOW WILL THE BLOOD SUPPLY TO THE HEART CUT OFF COMPLETELY?

Answer 10

IF THE BLOCKAGE IS CLOSE TO THE AORTA AND CORONARY ARTERY