The following points highlight the two main methods of artificial respiration. The methods are:- 1. Manual Methods 2. Instrumental Respiration. 1. Manual Methods: a. Schafer's Method (Fig. 8.43): The subject is laid in prone position and a small pillow is placed underneath the chest and epigastrium. The head is turned to one side. The operator kneels down by the side [...]
The following points highlight the seventeen important factors which influences coronary circulation in human beings. The factors are: 1. Mean Aortic Pressure 2. Cardiac Output 3. Metabolic Factors 4. CO2 and O2 5. Ions 6. Polypeptiedes 7. Adenine Nucleotides 8. Cardiac Sympathetic and Parasympathetic Nerves 9. Heart Rate 10. Hormones 11. Temperature 12. Muscular Exercise and Excitement 13. Anaemia and [...]
In this article we will discuss about:- 1. Anatomical Considerations of Cerebral Circulation 2. Normal Values of Cerebral Circulation 3. Regulation 4. Factors. Anatomical Considerations of Cerebral Circulation: Blood enters the cranium through four vessels, two internal carotid and two vertebral arteries. The last two combine to form the basilar artery which divides into two posterior cerebral arteries. Each internal [...]