Which of the following is associated with a decrease in cardiac output?
1. Sympathetic nerves
2. Parasympathetic neural signals
3. Pneumotaxic center
4. Adrenal medullary hormones
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhat is the effect of parasympathetic neural signals on Heart Activity?
1. decreases the rate of heart beat
2. decreases the speed of conduction of action potential
3. decreases the cardiac output
4. all of these
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe neurocenter for the activity of the Heart is located in
1. Pons
2. midbrain
3. medulla oblangata
4. cerebrum
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe sympathetic nerves give _______ neural signals to heart and increases the _______.
(1) stimulatory, ventricular contraction
(2) inhibitory, stroke volume
(3) stimulatory, ventricular relaxation
(4) inhibitory, ventricular relaxation
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe hormonal regulation of Cardiac output is
(1) mediated by adrenal cortex
(2) mediated by adrenal medulla
(3) mediated by thyroid
(4) mediated by pineal
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyHow 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
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyMedulla Oblangata regulates the Cardiac activity via
(1) CNS
(2) ANS
(3) PNS
(4) CNS and PNS
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology