The Transport System (Core)


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For the IB Biology course

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The Transport System (Core)

  1. 1. Transport System (Core) Stephen Taylor
  2. 2. Assessment Statements Obj. Draw and label a diagram of the heart showing the four chambers, associated blood 6.2.1 1 vessels, valves and the route of blood through the heart. 6.2.2 State that the coronary arteries supply heart muscle with oxygen and nutrients. 1 Explain the action of the heart in terms of collection of blood, pumping blood and 6.2.3 opening and closing of valves. 3 Outline control of the heartbeat in terms of myogenic muscle contraction, the role 6.2.4 2 of the pacemaker, nerves, the medulla of the brain and epinephrine (adrenaline). Explain the relationship between the structure and function of arteries, capillaries 6.2.5 3 and veins. State that blood is composed of plasma, erythrocytes, leucocytes (phagocytes and 6.2.6 1 lymphocytes) and platelets. State that the following are transported by the blood: nutrients, oxygen, carbon 6.2.7 1 dioxide, hormones, antibodies, urea, heat. Flip it: • Allott & Mindorff: p219-225, Allott p48 • i-Biology: • Watch Hank: • Complete the Quia Quiz before class.Command terms: Assessment statements from: Online IB Biology Subject Guide
  3. 3. Hands-only CPR.Your blood has oxygen in it – but it is notgetting to the brain and other organs.Hands-only CPR keeps the blood flowing untilhelp arrives with the Automatic ExternalDifibrilator (AED). The electrical signal isneeded to re-start the heart, and we’ll learnwhy this is in a little while. Call for help. Push hard and fast to the beat of Stayin’ Alive. Don’t stop until help arrives.Learn more here:
  4. 4. Data practice: CPR survival rates. Get started early to save a life! These data compare compression-only CPR with conventional CPR: neurologically favourable one-month survival. Population: bystander-assisted patients, transferred to hospital by ambulance. Japan. 2005 – 2007. Compression-only n=20,707 Conventional CPR n= 19,328 1. Compare survival rates of compression-only CPR with conventional CPR in all cases (top graph). 1. Describe the effect of increasing time to start CPR on survival of patients in cases of cardiac origin. 2. Calculate the difference in survival between hands- only CPR and conventional CPR in cases of non- cardiac origin after 7-8 minutes. 3. Compare survival rates between cases of cardiac and non-cardiac origin. Suggest a reason for the differences. Data from:
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  17. 17. @IBiologyStephen Please consider a donation to charity via Biology4Good. Click here for more information about Biology4Good charity donations.This is a Creative Commons presentation. It may be linked and embedded but not sold or re-hosted.