05. REGULATION OF CARDIAC ACTIVITY (NCERT)
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BODY FLUIDS and CIRCULATION(NCERT)

286001 Which of the following statements is correct regarding neural regulation of cardiac activity?

1 The cardiac center lies in medulla oblongata of brain.
2 Sympathetic nerve fibers accelerate the rate of heartbeat and parasympathetic nerve fibres retard the rate of heartbeat.
3 Adrenal medullary hormones can also increase the cardiac output.
4 All of these.
NCERT Page-287 / N-202
BODY FLUIDS and CIRCULATION(NCERT)

286002 Sympathetic nervous system

1 controls heartbeat
2 increase heartbeat
3 decreases heartbeat
4 not related to heartbeat
NCERT Page-287 / N-202
BODY FLUIDS and CIRCULATION(NCERT)

286003 How do parasympathetic neural signals affect the working of the heart?

1 Reduce both heart rate and cardiac output.
2 Heart rate is increased without affecting the cardiac output.
3 Both heart rate and cardiac output increase.
4 Heart rate decreases but cardiac output increases.
NCERT Page-287 / N-202
BODY FLUIDS and CIRCULATION(NCERT)

286004 How do parasympathetic neural signals affect the working of the heart?

1 Reduce both heart rate and cardiac output.
2 Heart rate is increased without affecting the cardiac output.
3 Both heart rate and cardiac output increase.
4 Heart rate decreases but cardiac output increases.
NCERT Page-287 / N-202
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BODY FLUIDS and CIRCULATION(NCERT)

286001 Which of the following statements is correct regarding neural regulation of cardiac activity?

1 The cardiac center lies in medulla oblongata of brain.
2 Sympathetic nerve fibers accelerate the rate of heartbeat and parasympathetic nerve fibres retard the rate of heartbeat.
3 Adrenal medullary hormones can also increase the cardiac output.
4 All of these.
NCERT Page-287 / N-202
BODY FLUIDS and CIRCULATION(NCERT)

286002 Sympathetic nervous system

1 controls heartbeat
2 increase heartbeat
3 decreases heartbeat
4 not related to heartbeat
NCERT Page-287 / N-202
BODY FLUIDS and CIRCULATION(NCERT)

286003 How do parasympathetic neural signals affect the working of the heart?

1 Reduce both heart rate and cardiac output.
2 Heart rate is increased without affecting the cardiac output.
3 Both heart rate and cardiac output increase.
4 Heart rate decreases but cardiac output increases.
NCERT Page-287 / N-202
BODY FLUIDS and CIRCULATION(NCERT)

286004 How do parasympathetic neural signals affect the working of the heart?

1 Reduce both heart rate and cardiac output.
2 Heart rate is increased without affecting the cardiac output.
3 Both heart rate and cardiac output increase.
4 Heart rate decreases but cardiac output increases.
NCERT Page-287 / N-202
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BODY FLUIDS and CIRCULATION(NCERT)

286001 Which of the following statements is correct regarding neural regulation of cardiac activity?

1 The cardiac center lies in medulla oblongata of brain.
2 Sympathetic nerve fibers accelerate the rate of heartbeat and parasympathetic nerve fibres retard the rate of heartbeat.
3 Adrenal medullary hormones can also increase the cardiac output.
4 All of these.
NCERT Page-287 / N-202
BODY FLUIDS and CIRCULATION(NCERT)

286002 Sympathetic nervous system

1 controls heartbeat
2 increase heartbeat
3 decreases heartbeat
4 not related to heartbeat
NCERT Page-287 / N-202
BODY FLUIDS and CIRCULATION(NCERT)

286003 How do parasympathetic neural signals affect the working of the heart?

1 Reduce both heart rate and cardiac output.
2 Heart rate is increased without affecting the cardiac output.
3 Both heart rate and cardiac output increase.
4 Heart rate decreases but cardiac output increases.
NCERT Page-287 / N-202
BODY FLUIDS and CIRCULATION(NCERT)

286004 How do parasympathetic neural signals affect the working of the heart?

1 Reduce both heart rate and cardiac output.
2 Heart rate is increased without affecting the cardiac output.
3 Both heart rate and cardiac output increase.
4 Heart rate decreases but cardiac output increases.
NCERT Page-287 / N-202
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BODY FLUIDS and CIRCULATION(NCERT)

286001 Which of the following statements is correct regarding neural regulation of cardiac activity?

1 The cardiac center lies in medulla oblongata of brain.
2 Sympathetic nerve fibers accelerate the rate of heartbeat and parasympathetic nerve fibres retard the rate of heartbeat.
3 Adrenal medullary hormones can also increase the cardiac output.
4 All of these.
NCERT Page-287 / N-202
BODY FLUIDS and CIRCULATION(NCERT)

286002 Sympathetic nervous system

1 controls heartbeat
2 increase heartbeat
3 decreases heartbeat
4 not related to heartbeat
NCERT Page-287 / N-202
BODY FLUIDS and CIRCULATION(NCERT)

286003 How do parasympathetic neural signals affect the working of the heart?

1 Reduce both heart rate and cardiac output.
2 Heart rate is increased without affecting the cardiac output.
3 Both heart rate and cardiac output increase.
4 Heart rate decreases but cardiac output increases.
NCERT Page-287 / N-202
BODY FLUIDS and CIRCULATION(NCERT)

286004 How do parasympathetic neural signals affect the working of the heart?

1 Reduce both heart rate and cardiac output.
2 Heart rate is increased without affecting the cardiac output.
3 Both heart rate and cardiac output increase.
4 Heart rate decreases but cardiac output increases.
NCERT Page-287 / N-202
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