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.
Description. Medical procedures and situations that regularly make use of local or regional anesthesia include the following: 1  biopsies, in which skin or tissue samples are taken for diagnostic procedures. 2  childbirth. 3  scar repair. 4  surgery on the face (including plastic surgery), skin, arms, hands, legs, and feet. 5  eye surgery.