The SA node
A) generates excitatory signals for muscle contraction.
B) is under voluntary control.
C) receives electrical signals from the AV node.
D) is located in the right atrium.
E) is all of these.

Question

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The Answer of The SA node
A) generates excitatory signals for muscle contraction.
B) is under voluntary control.
C) receives electrical signals from the AV node.
D) is located in the right atrium.
E) is all of these.

The SA Node