Podcast
Questions and Answers
What type of blood is pumped by the heart to the rest of the body?
What type of blood is pumped by the heart to the rest of the body?
- Deoxygenated blood
- Carbon dioxide-rich blood
- Oxygenated blood (correct)
- Nitrogen-rich blood
What is the main function of the diaphragm during inhalation?
What is the main function of the diaphragm during inhalation?
- It reduces the internal pressure
- It relaxes and returns to its dome shape
- It expands the rib cage
- It contracts and flattens (correct)
What happens to the internal pressure during inhalation?
What happens to the internal pressure during inhalation?
- It decreases (correct)
- It remains the same
- It increases
- It becomes negative
What is the role of the intercostal muscles during inhalation?
What is the role of the intercostal muscles during inhalation?
What happens to the thoracic volume during exhalation?
What happens to the thoracic volume during exhalation?
What is the main function of the diaphragm during exhalation?
What is the main function of the diaphragm during exhalation?
What is the role of the intercostal muscles during exhalation?
What is the role of the intercostal muscles during exhalation?
What is the purpose of the heart in the breathing mechanism?
What is the purpose of the heart in the breathing mechanism?
What happens to the diaphragm during inhalation?
What happens to the diaphragm during inhalation?
What happens to the volume of the chest cavity during exhalation?
What happens to the volume of the chest cavity during exhalation?
Where does gas exchange occur in the lungs?
Where does gas exchange occur in the lungs?
What is the function of haemoglobin in red blood cells?
What is the function of haemoglobin in red blood cells?
What happens to oxygen during diffusion in the alveoli?
What happens to oxygen during diffusion in the alveoli?
What is the role of the heart in the respiratory system?
What is the role of the heart in the respiratory system?
During inhalation, what happens to the rib cage?
During inhalation, what happens to the rib cage?
What is the process by which oxygen enters the blood in the alveoli?
What is the process by which oxygen enters the blood in the alveoli?
What is the purpose of the bronchioles in the lungs?
What is the purpose of the bronchioles in the lungs?
What is the function of carbon dioxide in the respiratory system?
What is the function of carbon dioxide in the respiratory system?
What happens to the air during exhalation?
What happens to the air during exhalation?
What is the role of the capillaries in the alveoli?
What is the role of the capillaries in the alveoli?
What is the primary function of the trachea?
What is the primary function of the trachea?
What is the primary function of the heart in the breathing mechanism?
What is the primary function of the heart in the breathing mechanism?
What happens to the rib cage during inhalation?
What happens to the rib cage during inhalation?
What is the result of the increased thoracic volume during inhalation?
What is the result of the increased thoracic volume during inhalation?
What happens to the diaphragm during exhalation?
What happens to the diaphragm during exhalation?
What is the purpose of the intercostal muscles during breathing?
What is the purpose of the intercostal muscles during breathing?
What type of blood returns to the heart?
What type of blood returns to the heart?
What is the result of the decreased thoracic volume during exhalation?
What is the result of the decreased thoracic volume during exhalation?
What happens to the air during inhalation?
What happens to the air during inhalation?
What is the primary function of the network of blood vessels in the breathing mechanism?
What is the primary function of the network of blood vessels in the breathing mechanism?
Which muscle relaxes and returns to its original shape during exhalation?
Which muscle relaxes and returns to its original shape during exhalation?
What is the effect of increased thoracic volume on internal pressure during inhalation?
What is the effect of increased thoracic volume on internal pressure during inhalation?
What is the net result of the breathing mechanism in terms of gas exchange?
What is the net result of the breathing mechanism in terms of gas exchange?
What is the primary function of the heart in the context of the breathing mechanism?
What is the primary function of the heart in the context of the breathing mechanism?
What is the effect of diaphragm contraction on the thoracic volume during inhalation?
What is the effect of diaphragm contraction on the thoracic volume during inhalation?
What is the role of the intercostal muscles during breathing?
What is the role of the intercostal muscles during breathing?
What is the primary site of gas exchange in the breathing mechanism?
What is the primary site of gas exchange in the breathing mechanism?
What is the primary function of the bronchi in the lungs?
What is the primary function of the bronchi in the lungs?
What is the effect of increased thoracic volume on the lungs during inhalation?
What is the effect of increased thoracic volume on the lungs during inhalation?
What is the purpose of the alveoli in the lungs?
What is the purpose of the alveoli in the lungs?
What happens to the oxygen that diffuses into the alveoli?
What happens to the oxygen that diffuses into the alveoli?
What is the role of the capillaries in the alveoli?
What is the role of the capillaries in the alveoli?
What is the result of the decreased thoracic volume during exhalation?
What is the result of the decreased thoracic volume during exhalation?
What is the role of haemoglobin in red blood cells?
What is the role of haemoglobin in red blood cells?
