Acoustic characteristics of thoracic diaphragm

1. What are the characteristics of breath sounds?
2. What is the characteristic feature of rhonchi breath sounds?
3. What are the 3 normal breath sounds and describe the location of these sounds?
4. When diaphragm contracts pressure in the thoracic cavity?

What are the characteristics of breath sounds?

Breath sound has three characters; frequency, intensity, and timbre or quality; which helps us to differentiate two similar sounds.

What is the characteristic feature of rhonchi breath sounds?

Rhonchi are musical low-pitched sounds similar to snores, usually indicating secretions in the airway, and are often cleared by coughing¹.

What are the 3 normal breath sounds and describe the location of these sounds?

Normal Breath Sounds

Tracheal sounds are heard best over the trachea and typically are louder and have a higher pitch than vesicular sounds. Bronchovesicular breath sounds are best heard between the first and second intercostal spaces of the anterior chest. Bronchial sounds are best heard over the body of the sternum.

When diaphragm contracts pressure in the thoracic cavity?

When the lungs inhale, the diaphragm contracts and pulls downward. At the same time, the muscles between the ribs contract and pull upward. This increases the size of the thoracic cavity and decreases the pressure inside. As a result, air rushes in and fills the lungs.