Autonomic regulation of heart rate is via two reflex centers found in the pons.
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Q8: Heart tissue is supplied with nutrients primarily
Q9: The myocardium receives its blood supply from
Q10: Hemorrhage with a large loss of blood
Q11: The "lub" sounds of the heart are
Q12: Anastomoses among coronary arterial branches provide collateral
Q14: The left ventricular wall of the heart
Q15: The left side of the heart pumps
Q16: As pressure in the aorta rises due
Q17: If blood volume decreased dramatically due to
Q18: If the aorta and pulmonary trunk were
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