Questions and Answers
What does Inotropic refer to?
What does Chronotropic mean?
Causing a change in rate of impulse formation
What is Dromotropic related to?
Causing change in velocity of conduction of impulse
Inotropic + increases contractile strength.
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Inotropic - decreases contractile strength.
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Chronotropic + leads to an increase in heart rate.
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Chronotropic - results in a decrease in heart rate.
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Dromotropic + indicates an increased conduction velocity.
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Dromotropic - leads to a decrease in conduction velocity.
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Study Notes
Inotropic
- Refers to the effects altering contractile force of the heart.
- Positive inotropic agents enhance contractile strength, improving heart efficiency.
- Negative inotropic agents reduce contractile strength, potentially weakening heart performance.
Chronotropic
- Pertains to changes in the rate of impulse formation, impacting heart rate.
- Positive chronotropic effects lead to an increased heart rate, potentially enhancing cardiac output.
- Negative chronotropic effects result in a decreased heart rate, which may lower cardiac output.
Dromotropic
- Involves changes in the velocity of conduction of electrical impulses through the heart.
- Positive dromotropic effects cause increased conduction velocity, aiding in rapid response to stimuli.
- Negative dromotropic effects result in decreased conduction velocity, which may delay the electrical signaling in the heart.
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Description
This quiz presents essential flashcards focused on the terms inotropic, chronotropic, and dromotropic, which are critical in understanding cardiac function. Each term is defined, illustrating how they affect heart contractility, impulse formation, and conduction velocity. Perfect for medical students and professionals looking to refine their knowledge in cardiology.
