Podcast
Questions and Answers
Which structures occupy the majority of the lung volume?
Which structures occupy the majority of the lung volume?
- Alveoli (correct)
- Chest wall muscles
- Respiratory bronchioles
- Pulmonary microvasculature
What drives the movement of gas in the respiratory zone?
What drives the movement of gas in the respiratory zone?
- Diffusion
- Distance
- Concentration gradients (correct)
- Pressure changes
Which muscles change the volume of the chest wall and thoracic space during inspiration?
Which muscles change the volume of the chest wall and thoracic space during inspiration?
- Diaphragm and intercostals
- External intercostals and diaphragm (correct)
- Intercostals and scalenes
- Diaphragm and SCM
What happens to the intrathoracic pressure during inspiration?
What happens to the intrathoracic pressure during inspiration?
What happens to the intrathoracic pressure during expiration?
What happens to the intrathoracic pressure during expiration?
Which structures relax during expiration?
Which structures relax during expiration?
What happens to the volume of the thoracic cavity during expiration?
What happens to the volume of the thoracic cavity during expiration?
What happens to the pressure in the airspaces of the lungs during expiration?
What happens to the pressure in the airspaces of the lungs during expiration?
What is the function of the pleura?
What is the function of the pleura?
What allows for the exchange of gas in the respiratory system?
What allows for the exchange of gas in the respiratory system?
Which of the following structures is the main site of gas exchange in the respiratory system?
Which of the following structures is the main site of gas exchange in the respiratory system?
What is the driving force behind gas movement in the conducting zone of the respiratory system?
What is the driving force behind gas movement in the conducting zone of the respiratory system?
Which of the following structures contains the vocal folds?
Which of the following structures contains the vocal folds?
Which region of the respiratory system is responsible for gas exchange through diffusion?
Which region of the respiratory system is responsible for gas exchange through diffusion?
What is the volume of the conducting airways from the nasopharynx to the terminal bronchioles?
What is the volume of the conducting airways from the nasopharynx to the terminal bronchioles?
Which of the following is NOT a muscle of respiration?
Which of the following is NOT a muscle of respiration?
What is the function of the trachea in the respiratory system?
What is the function of the trachea in the respiratory system?
Which of the following structures lack cartilage but are surrounded by smooth muscle?
Which of the following structures lack cartilage but are surrounded by smooth muscle?
What is the role of skeletal muscles in ventilation?
What is the role of skeletal muscles in ventilation?
Which of the following is NOT a region of ventilation in the respiratory system?
Which of the following is NOT a region of ventilation in the respiratory system?
Which of the following is true about the pleural cavity?
Which of the following is true about the pleural cavity?
What causes pleural effusion?
What causes pleural effusion?
What is the consequence of consolidation in the airways and alveoli?
What is the consequence of consolidation in the airways and alveoli?
What is the sound heard when an airway is narrowed or constricted?
What is the sound heard when an airway is narrowed or constricted?
What causes fine crackles in the lungs?
What causes fine crackles in the lungs?
What is the role of the nasal cavity?
What is the role of the nasal cavity?
Where is the bifurcation of the trachea located?
Where is the bifurcation of the trachea located?
What causes bilateral pleural effusion?
What causes bilateral pleural effusion?
What is the consequence of fluid in the pleural space?
What is the consequence of fluid in the pleural space?
What causes coarse crackles in the lungs?
What causes coarse crackles in the lungs?
