Mammalian Respiratory SystemThe mammalian respiratory system consists of nasal cavity, pharynx, larynx, trachea, bronchi, bronchioles and alveoli. Nostril: It is also called external nares. Nasal Chamber: Nasal septum divides nasal cavity into two nasal chamber by the nasal septum. Internal nares: There are posterior opening of nasal chambers that leads into … [Read more...] about Mammalian Respiratory System