Blood, Heart & Respiratory Diseases

OBJECTIVESKey Objective• Describe the main diseases linked to the circulatory and

respiratory systems

Outcomes• Understand that there are lung diseases: industrial diseases; with

genetic causes; and caused by lifestyle, smoking – briefly describe each disease (D)

• Describe some of the problems that the heart can experience (C)• Describe symptoms and treatment of asthma (C)• Describe how lifestyle can affect the circulatory system to include:

diet, alcohol, smoking, stress, drugs (C)• State the advantages and disadvantages of heart transplants (B)• Explain what happens during an asthma attack (A)

Blood FactsUse the first three links on the following webpage to answer questions 1–8:www.blood.co.uk/pages/bbits.htm

– How much blood do you have? – _______________ litres– How much blood can you lose and still live? – _______________.– What colour is your blood? – _______________.– How many kilometres (or miles) of blood vessels do you have? – _______________.– How long do red blood cells last? – _______________ months– How fast does blood travel in arteries? – _______________ metres in _______________ seconds– In which area of blood vessels do you find the most white blood cells? – _______________.– In which area of blood vessels do you find the most red blood cells? – _______________.

What’s in blood?

red blood cell

destroys bacteria

white blood cell

carries oxygen

platelet

carries dissolved food

plasma

helps blood to clot

Respiratory diseases and conditions

DiseaseType (industrial, lifestyle, genetic)

Cause Symptoms Treatment

asbestosis

cystic fibrosis

lung cancer

Asthma

Lifestyle factors affecting the

circulatory system

Problems the heart can experience

Hole in the Heart

Heart assist devices

Heart Transplants

Heart DiseaseThe UK has one of the highest death rates for heart disease in the world.Look at the data below, which shows death rate from heart disease (per 100 000) in 2003.

• Which parts of the UK were the healthiest and unhealthiest for heart disease?

• Describe two patterns shown by this data.

• Use your IT skills to draw bar charts to show this data for men and women.

Select the area you live in.• If the town you live in had a

population of 50 000, how many men and women would have died of heart disease in 2003?

Respiratory diseasesDisease Disease no. 1996 1997 1998 1999 2000 2001 2002 2003 2004

pneumococciosis (b) D1

coal 240 145 440 310 275 320 845 835 845

asbestos 335 270 225 315 360 375 450 540 595

other 25 30 45 75 45 40 95 60 70

diffuse mesothelioma D3 540 475 500 520 565 655 855 975 1105

occupational asthma D7 320 225 175 140 130 125 115 165 165

lung cancer with asbestosis/pleural thickening D8 40 20 35 30 35 50 50 60 55

pleural thickening D9 135 130 185 210 230 255 325 355 355

chronic bronchitis and/or emphysema D12 120 1940 2310 1095 445 320 345 290 210

others 10 5 5 15 5 5 5 – 10

total 1765 3535 3930 2715 2085 2145 3090 3280 3410

Name one disease that showed a decrease from 1996 to 2004. Name two diseases that showed an increase from 1996 to 2004.What general pattern is shown by the totals for each year?Suggest an explanation for this pattern, remembering that there has been a great decrease in people employed in industries such as coal mining and in the absence of asbestos, as well as improved health and safety laws.What do you expect to happen to these figures in the next 10 years? Explain your answer.