exists and is an alternate of . The four types of membranes are: 1) cutaneous membranes; 2) serous membranes; 3) mucous membranes; and 4) synovial membranes. Mucous membranes are tissues that line body cavities or canals such as the throat, nose, mouth, urethra, rectum, and vagina.
A laryngeal mask. A laryngeal mask airway â also known as laryngeal mask and supraglottic airway â is a medical device that keeps a patient's airway open during anaesthesia or unconsciousness.
General Anaesthesia (GA) refers to being âput to sleepâ. During GA, you are unconscious. General Anaesthesia is rarely used for dental treatment nowadays. One of the reasons for this is that IV sedation with midazolam works so well for nearly everyone, and is extremely safe.