A membrane coating all human anatomy passages that keep in touch with air, including the respiratory and alimentary tracts, and having cells and associated glands that secrete mucus. Also referred to as mucosa.
A membrane which secretes mucus. It types the liner of various human body passages that keep in touch with the atmosphere, like the respiratory, genitourinary, and alimentary tracts such as the mouth, nasal passages, vagina and urethra.
mucus-secreting membrane coating all body cavities or passages that communicate with the outside