All of the following are true of the SA node EXCEPT that it:
A) directly stimulates the ventricles.
B) directly stimulates the atria.
C) is the pacemaker.
D) is influenced by nerve impulses and hormones.
Correct Answer:
Verified
Q22: Ventricles force blood directly into the:
A)veins.
B)arteries.
C)capillaries.
D)arterioles.
E)venules.
Q23: The average red blood cell lives for
Q24: If you remove red blood cells, white
Q25: Southern Copperhead snake venom contains a protein
Q26: Each of the following types of white
Q28: When your blood pressure is measured from
Q29: Which blood constituent makes up most of
Q30: Red blood cells make up _% of
Q31: Erythrocytes are produced in the:
A)bone marrow.
B)liver.
C)spleen.
D)heart.
Q32: Erythropoietin:
A)is produced by the pancreas.
B)is released in
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