What Part of the Heart's Conduction System Initiates the Heartbeat

question 178

Multiple Choice

What part of the heart's conduction system initiates the heartbeat?

• A)Atrioventricular Node (AV)
• B)Sinoatrial node (SA)
• C)Purkinje fibers
• D)Atrioventricular bundle (Bundle of His)

---

Definitions:

Materials Cost

Refers to the expense incurred in acquiring the raw materials used in the production of goods or services, excluding labor and indirect costs.

Molding Department

A specialized department within a manufacturing facility where the molding of materials into desired shapes takes place.

Weighted Average Method

A cost accounting method that calculates the cost of goods sold and ending inventory based on the weighted average cost of all units available for sale.

Equivalent Unit

An equivalent unit is a measure used in cost accounting to express the amount of work done on incomplete products in terms of fully completed units.