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In humans and other mammals, the anatomy of a typical respiratory system is the respiratory tract.The tract is divided into an upper and a lower respiratory tract.The upper tract includes the nose, nasal cavities, sinuses, pharynx and the part of the larynx above the vocal folds.
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In mammals, invertebrates and most fish, [1] [2] the anus (pl.: anuses or ani; from Latin, 'ring' or 'circle') is the external body orifice at the exit end of the digestive tract (), i.e. the opposite end from the mouth.
The capybara [a] or greater capybara (Hydrochoerus hydrochaeris) is the largest living rodent, [2] native to South America.It is a member of the genus Hydrochoerus.The only other extant member is the lesser capybara (Hydrochoerus isthmius).
Infant respiratory distress syndrome (IRDS), also known as surfactant deficiency disorder (SDD), [2] and previously called hyaline membrane disease (HMD), is a syndrome in premature infants caused by developmental insufficiency of pulmonary surfactant production and structural immaturity in the lungs.
English: The respiratory system in a bird, showing lungs, abdominal air sac, anterior thoracic air sac, cervical air sac, clavicular air sa, humeral diverticulum of the clavicular air sac, paranasal sinus, posterior thoracic air sac, paratympanic sinus, and trachea.