46+ Anatomy Respiratory System Alveoli. Related online courses on physioplus. The alveoli in the respiratory system:
Lung Wikipedia from upload.wikimedia.org
They provide alternative routes to and from the alveoli if an obstruction occurs. Each respiratory bronchiole divides into long passages called alveolar ducts which lead into alveolar sacs, each of which has opening of several alveoli into it. The organs of the respiratory system include the nose, pharynx, larynx, trachea, bronchi, and their smaller branches, and the lungs, which contain the alveoli.
Gas exchange of co2 and o2 occur because of a pressure gradient.
The respiratory system serves three principal purposes in the human body: Gas exchange of co2 and o2 occur because of a pressure gradient. The gut tube is an endodermal structure. Small branches of the bronchial tubes that lead to the alveoli.
