Little hairs called Cilia, which help filter dust from the air as it passes into the lungs.
The respiratory system, gastrointestinal system, and urogenital system have tracts lined with mucous membranes. These membranes help protect the body by trapping pathogens and debris, and produce mucus to keep the tracts moist.
Mucous membranes are not sterile as they are lined with cells that produce mucus and harbor bacteria and other microorganisms. The presence of commensal bacteria helps maintain the balance of the microbiome and supports the immune system.
The respiratory system, gastrointestinal tract, and the urinary system (including the bladder) are lined with mucous membranes. These membranes help protect the organs from pathogens and maintain necessary moisture levels for their functions.
The trachea
The skeletal system would not be lined with a mucous membrane. Mucous membranes are found in the respiratory, digestive, urinary, and reproductive systems to secrete mucus that helps protect and lubricate these cavities.
ciliated mucous membranes
digestive system is lined inside by non-keratinised stratified squamous epithelium some of which are ciliated
Deposits from cigarette smoke are most likely to interfere with the ciliated mucous membranes located in both the nasal passages and the bronchial tubes. These membranes help to trap and remove inhaled particles and microorganisms from the respiratory system, but cigarette smoke can impair their function, leading to respiratory issues and increased susceptibility to infections.
alveoli
I would assume IgA class antibodies. The intestinal tract is lined with mucous membranes and the IgA class is primarily secreted through mucous.
The types of membranes lining cavities that communicate with the exterior of the body are mucous membranes. These membranes are found in areas such as the respiratory, digestive, urinary, and reproductive tracts, and they secrete mucus to protect and lubricate the tissues.
The least protective body cavity is the nasal cavity, as it is lined with delicate mucous membranes that can be easily damaged.