Texas Certified Nursing Assistant (CNA)

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What is the typical direction of physical development in infants?

  1. Head up

  2. Head down

  3. Center outwards

  4. Limbs first

The correct answer is: Head down

The typical direction of physical development in infants is from head down. This pattern, known as cephalocaudal development, signifies that infants gain control over their head and neck before moving on to their trunk and legs. For example, babies will first learn to lift their heads while lying on their stomachs, later mastering sitting up, crawling, and finally standing and walking as they grow. The organization of motor control begins at the head and gradually progresses downward, illustrating how development is interconnected with muscle control and coordination in a sequential manner. Understanding this concept helps caregivers and healthcare professionals recognize developmental milestones and provide appropriate support as infants grow.

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