Podcast
Questions and Answers
What part of the brain is responsible for sending nerve impulses to contract muscles for inspiration?
What part of the brain is responsible for sending nerve impulses to contract muscles for inspiration?
- Pons
- Hypothalamus
- Cerebellum
- Medulla oblongata (correct)
Which feedback mechanism inhibits the breathing center when the lungs fill up?
Which feedback mechanism inhibits the breathing center when the lungs fill up?
- Chemical receptors in the heart
- Stretch receptors in the lungs (correct)
- Thermoreceptors in the diaphragm
- Pressure receptors in the aorta
What happens when CO2 levels increase in the body?
What happens when CO2 levels increase in the body?
- Breathing rate and depth increase (correct)
- Breathing remains unaffected
- Breathing rate decreases
- Breathing depth decreases
During external respiration, where does carbon dioxide diffuse to?
During external respiration, where does carbon dioxide diffuse to?
In which process do oxygen leave the blood and carbon dioxide enter the blood in the tissues?
In which process do oxygen leave the blood and carbon dioxide enter the blood in the tissues?
What is responsible for protecting us from infectious agents in the respiratory tract?
What is responsible for protecting us from infectious agents in the respiratory tract?
What is the main factor that regulates the activity of inspiration?
What is the main factor that regulates the activity of inspiration?
Which muscles are involved in the process of inspiration?
Which muscles are involved in the process of inspiration?
What is the function of the external intercostal muscles during expiration?
What is the function of the external intercostal muscles during expiration?
Which volume of air represents the small amount of air moving in and out with each breath?
Which volume of air represents the small amount of air moving in and out with each breath?
What is the function of residual volume in the lungs?
What is the function of residual volume in the lungs?
How is vital capacity visualized?
How is vital capacity visualized?
What is the function of the initial air passages in the respiratory system?
What is the function of the initial air passages in the respiratory system?
Which structure covers the opening to the trachea during swallowing?
Which structure covers the opening to the trachea during swallowing?
How does the volume of sound produced by the vocal cords vary?
How does the volume of sound produced by the vocal cords vary?
Where does tear drainage lead to in the respiratory system?
Where does tear drainage lead to in the respiratory system?
What determines the pitch of an individual's voice in the respiratory system?
What determines the pitch of an individual's voice in the respiratory system?
Which part of the respiratory system is responsible for producing sound?
Which part of the respiratory system is responsible for producing sound?
