Which of the Following Statements Is False

question 20

Multiple Choice

Which of the following statements is false?

• A) A heart will stop beating when the nerves to the heart are severed.
• B) Some cardiac muscle cells are self-excitatory.
• C) The pacemaker of the heart is the sinoatrial node.
• D) Cardiac muscles join end to end to allow rapid communication.
• E) Cardiac muscles contract essentially in unison.

---

Definitions:

Voltage Drop

The reduction in voltage as electric current flows through passive elements (like resistors) in a circuit.

Series RC

A circuit in which a resistor (R) and a capacitor (C) are connected in a single series path, affecting the circuit's overall impedance and phase angle.

Total Capacitive Reactance

The overall opposition that a circuit presents to the flow of alternating current (AC) due to the capacitance in the circuit, measured in ohms.

Total Resistance

Refers to the cumulative resistance within an electric circuit, affecting the overall current flow.