Diet and CHD

HideShow resource information
  • Created by: alanahart
  • Created on: 31-05-15 12:42
View mindmap
  • Diet and CHD
    • Carbohydrates, proteins, fats,vitamins, minerals, water and fibre are all essential for a balanced diet.
      • Balanced diet: contains all the nutrients required for health in the correct proportions.
        • BMI:
    • CHD is the result of fatty deposits in coronary arteries. These deposits are called atherosclerosis.
      • These depositions narrow the lumen. This restricts blood flow to the heart muscle, which can cause O2 starvation.
  • CHD is the result of fatty deposits in coronary arteries. These deposits are called atherosclerosis.
    • These depositions narrow the lumen. This restricts blood flow to the heart muscle, which can cause O2 starvation.
  • Cholesterol
    • Essential to body functioning normally. Found in cell membranes and skin and is used to make steroid sex hormones and bile.
      • Cholesterol must be transported around the body, but is insoluble in water. Therefore, to transport it, it is converted into lipoproteins.
        • There are two types of lipoproteins, high-density (H.D.L.0 and low density (L.D.L.)
          • These lipoproteins are released into blood and travel to cells with the correct receptor sites.
          • Lipoprotein: Mixture of lipid, cholesterol and protein used to transport fats and cholesterol around the body.
    • Diet and CHD
      • Carbohydrates, proteins, fats,vitamins, minerals, water and fibre are all essential for a balanced diet.
        • Balanced diet: contains all the nutrients required for health in the correct proportions.
          • BMI:
    • High-Density Lipoproteins
      • Combination of unstaurated fats, cholesterol and protein.
        • Carry cholesterol from body tissues to liver. These liver cells have receptor sites that allow the H.D.L.s to bond and cell membrane.
          • In the liver, cholesterol is then broken down or used in cell metabolism to make bile.
    • Low-Density Lipoproteins
      • Combination of sat. fats, cholesterol and protein.
        • Carry cholesterol from liver to tissues. The tissues have receptor sites allowing LDLs to bind.
    • Diet and Lipoproteins
      • Try to maintain higher proportions of H.D.L.s than L.D.L.s.
      • Lots of saturated animal fats will increase conc of LDLs
      • Low fat diet will reduce conc of liproproteins.
      • Eating a high proportion of unsat. fats will increase conc of H.D.L.s.
      • Monounsat fats and polyunsat fats help reduce conc of L.D.L.s in blood
  • High level of H.D.L.s are associated with reducing cholesterol levels in the blood.
    • The reduce depositions in artery walls by atherosclerosis and can even help remove deposits.
      • This gives reason for us to suggest unsat. fats are better than sat. fats.
    • High-Density Lipoproteins
      • Combination of unstaurated fats, cholesterol and protein.
        • Carry cholesterol from body tissues to liver. These liver cells have receptor sites that allow the H.D.L.s to bond and cell membrane.
          • In the liver, cholesterol is then broken down or used in cell metabolism to make bile.

Comments

No comments have yet been made

Similar Biology resources:

See all Biology resources »See all Health, illness and disease resources »