Study unit 6 80 A Platyhelminthes B Nematoda C Annelida D Crustacea crayfish

Study unit 6 80 a platyhelminthes b nematoda c

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Study unit 6 80 A. Platyhelminthes B Nematoda C. Annelida D. Crustacea (crayfish) FIGURE 6.1: INTERNAL TRANSPORT IN INVERTEBRATE ANIMALS Control your answers using the listed sources. Report any problems that you experience at the contact sessions. Pseudo coelom Gills 1 2 3 4
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Study unit 6 81 Development of cardiovascular systems in the subphylum Vertebrata 1. Use the information in Mader and Windelspecht to answer the questions that refer to figure 6.2. The diagrams represent the blood circulation systems as found in the different vertebrate classes namely Mammals, Osteichthyes and Amphibia (not the correct sequence). A B C FIGURE 6.2: BLOOD CIRCULATION IN DIFFERENT VERTEBRATE CLASSES 1.1 With which Vertebrate classes do you associate each of the blood systems A to C? Motivate your choices by referring to the anatomy of the heart and circulation. (6) 1.2 Explain the following concepts by referring to the diagrams above.(Give the meaning of the concept AND indicate which of the diagrams qualify in each case.) 2.1 Closed blood systems. (2) 2.2 Double circulation. (2) Control your answers using the listed sources. Report any problems that you experience at the contact sessions. .ca/Thumbnails/showimag e.cfm?File_name=CRUS0 52B&File_type=GIF pyonline.com/articles/p19 8.htm
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Study unit 6 82 6.1 CARDIOVASCULAR SYSTEM Approximate study time needed to complete this study unit Total Time: Approximately 36 hours Contact sessions: 6 Self-study: 22 hours Study unit outcomes On completion of this study section you should be able to: Describe the size and location of the heart and illustrate it with the aid of diagrams. Describe the external and internal structure of the heart and illustrate it with the aid of diagrams. Critically evaluate the working or operation and the importance of the valves in the heart. Describe the cardial cycle and heart noises. Describe the passage of the blood through the heart and illustrate it with the aid of diagrams. Describe the myogenic nature of the stimulation of the heart and the passage of impulses through the heart and illustrate it with the aid of diagrams. Describe nervous and hormonal control over the heart beat tempo. Explain which information can be obtained from an ECG. Define and explain with the aid of diagrams the concepts closed blood circulatory system, dual circulatory and pulmonal, systemic and portal vein blood circulatory systems.
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Study unit 6 83 Describe the microscopic and macroscopic structure and functions of an artery, vein and capillary blood-vessel, illustrate it with the aid of diagrams and compare it with each other. Describe the exchange of materials in a capillary bed and illustrate it with the aid of a figure. Define the concept blood pressure, describe the factors that influence it and name the dangers of high blood pressure.
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  • Spring '16
  • Ambani Mudau
  • Phylum, Windelspecht

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