The atrial reflex relies upon chemoreceptors to detect stretch in the atrial wall.
Indicate whether this statement is true or false.
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Question 2) The connections shared by arteries that allow them to shunt blood from one artery to another are called _________________.
Fill in the blank with correct word.
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Question 3) The _______________ cardiac vein travels alongside the right marginal artery.
Fill in the blank with correct word.
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Question 4) The heartbeat is initiated by the cells of the _______________ node.
Fill in the blank with correct word.
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Question 5) ________________ innervation increases the rate and the force of heart contraction.
Fill in the blank with correct word.
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Question 6) Normally, the left and right ventricles eject the same amount of blood.
Indicate whether this statement is true or false.
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Question 7) The numerous ________________ within the intercalated discs prevent cardiac muscle fibers from pulling apart.
Fill in the blank with correct word.
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Question 8) The property that allows the heart to initiate each heartbeat itself is called __________________.
Fill in the blank with correct word.
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Question 9) Purkinje fibers are small fibers within the atria that conduct impulses rapidly.
Indicate whether this statement is true or false.
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Question 10) The middle layer of the heart wall that is made of cardiac muscle tissue is the ________________.
Fill in the blank with correct word.
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