186 THE CIRCULATION 



PAGK 



10. What wisdom is there in the law of the blood's coagulation ? 155, 156 



11. How is this wisdom made manifest ? 156 



12. In what cases is the aid of the surgeon required ? 156 



13. What are the two great uses of the blood ? 156, 157 



14. Through what mediums is the blood provided with new material and 



relieved of the old material? 157 



15. What do you understand by the operation called transfusion ? 157 



16. What cases of transfusion are reported of the lower animals ? 158 



17. What can you state of transfusion as practised upon man ? 157, 158 



18. What further can you say on the subject ? 158 



19. What changes take place in the color of the blood in its journey 



through the system ? 158 



20. State all you can in relation to the circulation of the blood 159 



21. All, in relation to the size, shape, and location of the heart 160, 161 



22. How is the loss of power in the heart-movements obviated ? 161 



23. Give a description of the formation of the heart 161 



24. What can you state of the ventricles and auricles of the heart ? 161 



25. Describe the action of the heart.' 162 



26. What special vitality does the tissue of the heart possess ?. . . 163 



27. State all you can on the subject 163 



28. Describe the course of the blood through the cavities of the heart. 163, 164 



29. Describe the mechanism that regulates the heart-currents 164 



30. How do you account for the two heart-sounds at the front of the 



chest ? 164 



31. State what you can of the frequency of the heart's action 164, 165 



32. Of the activity of the heart 166, 167 



33. What do you understand by the arteries ? 167, 168 



34. State what you can of the arteries and the arterial system 168 



35. What do you understand by the pulse ? 169, 170 



36. In what part of the body may the pulse be felt? 169 



37. What further can you state of the pulse ? 169 



38. What are the veins? 170 



39. Where do they exist, and how are they formed ? 170 



40. Describe the valves of the veins and their uses 171, 172 



41. Now give a full description of the construction of the veins 171, 172 



42. What further can you state of the veins ? 172 



43. What do you understand by the capillaries ? 172 



44. What service do the capillaries perform ? 173, 174 



45. What can you state of the rapidity of the blood's circulation ? ... 175, 176 



46. Of the process known as assimilation ? 177 



47. Of injuries to the blood-vessels ? 178 



48. What is the effect of alcohol upon the heart ? 179, 180 



49. What is said of alcohol as a fat-producer ? 180 



