How Did the Sinoatrial (SA) Node Most Likely Get Its

question 1

Multiple Choice

How did the sinoatrial (SA) node most likely get its name?

• A) It is damaged by sinus infections (head colds).
• B) It develops from the sinus venosus and lies in an atrium.
• C) It is on the side of the atrium.
• D) It lies at the opening of the coronary sinus.

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Definitions:

Distribution Question

Refers to how the income or wealth is shared among different groups in society.

Specialization

The process of concentrating on and becoming expert in a particular subject or skill.

Productivity

The measure of output per unit of input, indicating the efficiency with which goods and services are produced.

Economic Structure

The classification of an economy based on various sectors, such as agriculture, manufacturing, and services, indicating the allocation of resources among these sectors.