According to Piaget,a 6-Month-Old Infant Should Be in Which Developmental

question 48

Multiple Choice

According to Piaget,a 6-month-old infant should be in which developmental stage?

• A) Use of reflexes
• B) Primary circular reactions
• C) Secondary circular reactions
• D) Coordination of secondary schemata

---

Definitions:

Cardiovascular System

The closed circulatory system of vertebrates that transports oxygen, nutrients, hormones, and other substances, and protects the body against disease; consists of heart and blood vessels.

Intercalated Disks

Specialized structures in cardiac muscles that facilitate the transmission of electrical signals and coordination of contraction.

Gap Junctions

Specialized intercellular connections that allow for direct chemical and electrical communication between cells.

Cardiac Muscle Tissue

Specialized muscle tissue found only in the heart, characterized by striated cells that contract involuntarily to pump blood.