The diagram below represents the simplified pathway of the circulation of blood. Study the same and answer the question that follow: (a) Name the blood vessels labelled 1 and 2. (b) State function of blood vessels labelled 5 and 8 (c) What is the importance of the blood vessel labelled 6? (d) Which blood vessel will contain a high amount of glucose and amino acids after a meal? (e) Draw a diagram of the different blood cells as seen in a smear of human blood.