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.
Anesthesia vs anaesthesia. Anesthesia is the total or partial loss of sensation, especially of pain, through the use of gas, injection or hypnosis before a medical procedure. Local anesthesia blocks pain while the patient is still conscious, general anesthesia blocks pain through the loss of consciousness. Anesthesia may also refer to the total or partial loss of sensation, especially pain, as a result of disease, or may be used metaphorically.