Goblet cells are in the respiratory epithelium, which lines the airways from the pharynx down into the lungs. They secrete mucous.
Mucus is secreted so that peristalsis can occur and can slide easily down you throat.
The respiratory system's role in energy metabolism lies is to allow the exchange of gases to take place in the lungs and tissue cells. Oxygen is needed for certain metabolic reactions to occur and for the production of energy.
in the alveoli
The gas occurs by simple diffusion through the cells.
Gas exchange does not occur in the respiratory tract, it occurs in the alveoli.
Function: To secrete mucus to coat and protect the epithelia.Membrane: Mucous Membrane
Respiratory system.
Gas exchange occurs in the alveoli in the respiratory system. The thin-walled structures allow diffusion of gases into and out of the capillaries.
Lungs
The cells that secrete mucus are the goblet cells. They are not considered glands and there are no glands that are mucous.
Asthma Bronchitis Lungs cancer! Emphysema , Cough etc.
cilia regain normal function