Inspiration to expiration periods are equal. These are normal sounds in the mid-chest area or in the posterior chest between the scapula. They reflect a mixture of the pitch of the bronchial breath sounds heard near the trachea and the alveoli with the vesicular sound.
Start studying Chapter 11: Lungs and Respiratory System. Learn vocabulary, terms, and more with flashcards, games, and other study tools.
Vesicular breath sounds are soft and low pitched with a rustling quality during inspiration and are even softer during expiration. These are the most commonly auscultated breath sounds, normally heard over most of the lung surface.
However, in sheep, goats, llamas, and alpacas, they may be heard throughout the full lung field and are often louder than tracheal breath sounds. Increased intensity of bronchovesicular sounds is most often associated with increased ventilation or pulmonary consolidation.