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Questions and Answers
What is the primary function of the Hering-Breuer inflation reflex?
What is the primary function of the Hering-Breuer inflation reflex?
- To prevent over-inflation of the lungs (correct)
- To increase the rate of respiration during exercise
- To stimulate coughing and sneezing in response to irritants
- To regulate tidal volume during normal ventilation
What type of nerve fibers innervate pulmonary irritant receptors?
What type of nerve fibers innervate pulmonary irritant receptors?
- Non-myelinated sympathetic nerve fibers
- Non-myelinated vagal nerve fibers
- Myelinated vagal nerve fibers (correct)
- Myelinated sympathetic nerve fibers
What is the stimulus for the Hering-Breuer deflation reflex?
What is the stimulus for the Hering-Breuer deflation reflex?
- Extreme deflation of the lungs (correct)
- Over-inflation of the lungs
- Tidal volume exceeding 1.5 liters
- Normal tidal volume
What is the response to stimulation of pulmonary irritant receptors?
What is the response to stimulation of pulmonary irritant receptors?
What is the location of 'J receptors' in the lungs?
What is the location of 'J receptors' in the lungs?
What is the effect of cutting the vagi on the Hering-Breuer inflation reflex?
What is the effect of cutting the vagi on the Hering-Breuer inflation reflex?
What is the primary mechanism of quiet breathing?
What is the primary mechanism of quiet breathing?
What happens when the respiratory drive for increased pulmonary ventilation becomes greater than normal?
What happens when the respiratory drive for increased pulmonary ventilation becomes greater than normal?
What is the function of the pneumotaxic center?
What is the function of the pneumotaxic center?
What is the role of the ventral respiratory neurons?
What is the role of the ventral respiratory neurons?
What is the result of electrical stimulation of ventral respiratory neurons?
What is the result of electrical stimulation of ventral respiratory neurons?
What is the location of the pneumotaxic center?
What is the location of the pneumotaxic center?
What is the outcome of cutting the vagus nerve on respiration?
What is the outcome of cutting the vagus nerve on respiration?
What type of receptors are located in the muscular walls of the bronchi and bronchioles?
What type of receptors are located in the muscular walls of the bronchi and bronchioles?
What is the purpose of the Hering-Breuer inflation reflex?
What is the purpose of the Hering-Breuer inflation reflex?
What is the role of the dorsal respiratory group of neurons in the Hering-Breuer reflex?
What is the role of the dorsal respiratory group of neurons in the Hering-Breuer reflex?
What type of receptors are stimulated by emotional stimuli from the hypothalamus and limbic system?
What type of receptors are stimulated by emotional stimuli from the hypothalamus and limbic system?
What is the outcome of intact vagus nerve on respiration?
What is the outcome of intact vagus nerve on respiration?
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