Podcast
Questions and Answers
What is the primary function of the pneumotaxic center in respiration?
What is the primary function of the pneumotaxic center in respiration?
- To provide powerful expiratory signals to the abdominal muscles
- To control the 'switch-off' point of the inspiratory ramp (correct)
- To limit inspiration
- To transmit signals to the inspiratory area
What is the role of the ventral respiratory group of neurons during normal quiet respiration?
What is the role of the ventral respiratory group of neurons during normal quiet respiration?
- Remain almost totally inactive (correct)
- Transmit signals to the inspiratory area
- Provide powerful expiratory signals to the abdominal muscles
- Contribute to both inspiration and expiration
What is the function of the Hering-Breuer inflation reflex?
What is the function of the Hering-Breuer inflation reflex?
- To control the 'switch-off' point of the inspiratory ramp
- To increase the rate of respiration
- To limit inspiration
- To stop further inspiration (correct)
How do excess carbon dioxide or excess hydrogen ions in the blood affect respiration?
How do excess carbon dioxide or excess hydrogen ions in the blood affect respiration?
Where are the peripheral chemoreceptors located?
Where are the peripheral chemoreceptors located?
What is the role of oxygen in controlling respiration?
What is the role of oxygen in controlling respiration?
What is unique about hydrogen ions in stimulating sensory neurons in the chemosensitive area?
What is unique about hydrogen ions in stimulating sensory neurons in the chemosensitive area?
Where is the chemosensitive area located in the respiratory center?
Where is the chemosensitive area located in the respiratory center?
Where is the respiratory center located in the brain?
Where is the respiratory center located in the brain?
Which group of neurons is responsible for mainly causing expiration?
Which group of neurons is responsible for mainly causing expiration?
What is the main function of the pneumotaxic center?
What is the main function of the pneumotaxic center?
Where are most of the neurons of the dorsal respiratory group located?
Where are most of the neurons of the dorsal respiratory group located?
What serves as the sensory termination for transmitting signals into the respiratory center?
What serves as the sensory termination for transmitting signals into the respiratory center?
Which group of neurons plays the most fundamental role in the control of respiration?
Which group of neurons plays the most fundamental role in the control of respiration?
What is responsible for generating the basic rhythm of respiration?
What is responsible for generating the basic rhythm of respiration?
'The nervous signal transmitted to the inspiratory muscles is not an instantaneous burst of action potentials.' What part of the respiratory center does this refer to?
'The nervous signal transmitted to the inspiratory muscles is not an instantaneous burst of action potentials.' What part of the respiratory center does this refer to?
What is the chronic effect of a change in blood carbon dioxide concentration on respiratory drive after a few days' adaptation?
What is the chronic effect of a change in blood carbon dioxide concentration on respiratory drive after a few days' adaptation?
Where are the carotid bodies located?
Where are the carotid bodies located?
What is the physiological response when the oxygen concentration in arterial blood falls below normal?
What is the physiological response when the oxygen concentration in arterial blood falls below normal?
What is the consequence of chronic breathing of low oxygen?
What is the consequence of chronic breathing of low oxygen?
What is the role of pulmonary irritant receptors in the trachea and bronchi?
What is the role of pulmonary irritant receptors in the trachea and bronchi?
What may give a person a feeling of dyspnea (shortness of breath)?
What may give a person a feeling of dyspnea (shortness of breath)?
What is the most prevalent cause of respiratory depression and respiratory arrest?
What is the most prevalent cause of respiratory depression and respiratory arrest?
Where are the aortic bodies located?
Where are the aortic bodies located?
What happens to the activity of the respiratory center in the brain stem within 2 to 3 days of chronic breathing of low oxygen?
What happens to the activity of the respiratory center in the brain stem within 2 to 3 days of chronic breathing of low oxygen?
