Which of the Following Is the Correct Order of the Conduction

question 4

Multiple Choice

Which of the following is the correct order of the conduction system of the heart?

• A) AV node, SA node, bundle of his, Purkinje network
• B) Bundle of His, AV node, Purkinje network
• C) Purkinje network, bundle of His, AV node, SA node
• D) SA node, AV node, bundle of His, Purkinje network

---

Definitions:

Absolute Threshold

The minimum intensity of a stimulus that one can perceive 50% of the time, marking the boundary between detectable and undetectable levels of sensory input.

Taste Constancy

The ability to perceive and recognize the taste of substances under varying conditions consistently.

Inhibitory Synapses

Junctions between neurons where the action of one neuron can decrease the likelihood of the second neuron firing an action potential, thus inhibiting its activity.

Action Potentials

Electrical impulses that transmit signals along neurons, essential for the functioning of nerves and muscles in the body.