In this article we will discuss about the meaning and factors causing cyanosis. Meaning of Cyanosis: Cyanosis is a clinical condition in which the skin and mucous membranes assume a bluish colour. It may be local or general. When general, it is best seen at the lips, nose, cheeks, ears, hands and feet. It is caused by an alteration in [...]
Two separate processes are involved in vocalisation: 1. Phonation 2. Atriculation. Process # 1. Phonation: The whole process is dominated and co-ordinated by speech centre in the cerebral cortex, damage to which will lead to permanent aphasia. Phonation is due to vibration of vocal cords which are folds stretched along the lateral wall of the larynx between thyroid and arytenoid [...]
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 [...]