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Questions and Answers
What is the term that refers to the increase of the heart rate during inspiration and its decrease during expiration?
What is the term that refers to the increase of the heart rate during inspiration and its decrease during expiration?
- Respiratory sinus arrhythmia (correct)
- Vagal reflex disorder
- Cardiac respiratory cycle
- Tachycardia syndrome
What primarily causes the increase of heart rate during inspiration in young individuals and children?
What primarily causes the increase of heart rate during inspiration in young individuals and children?
- Decrease in vagal tone
- Impulses from the expiratory center
- Activation of the parasympathetic nervous system
- Stretch receptors in the lungs (correct)
Which center is responsible for impulses discharged during inspiration that lead to heart rate acceleration?
Which center is responsible for impulses discharged during inspiration that lead to heart rate acceleration?
- Cardiac inhibitory center
- Vagal nerve center
- Expiratory center
- Inspiratory center (correct)
What happens to cardiac vagal tone during inspiration?
What happens to cardiac vagal tone during inspiration?
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Which phenomenon is commonly observed normally in young individuals and children?
Which phenomenon is commonly observed normally in young individuals and children?
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What effect do impulses discharged from certain stretch receptors in the lungs have on the cardiac inhibitory center?
What effect do impulses discharged from certain stretch receptors in the lungs have on the cardiac inhibitory center?
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What occurs to heart rate during expiration?
What occurs to heart rate during expiration?
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