Which statement describes the proximal-to-distal progression in motor development?

• A. Proximal to distal
• B. Gross motor to fine motor
• C. Stability to mobility
• D. Radial to ulnar

Answer: (A)

The main idea here is that motor control develops from the center of the body outward. Proximal-to-distal means control starts with the trunk and shoulder region to create a stable base, and only then do functions in the more distant segments—like the arms, wrists, and fingers—become refined. In practical terms, a child gains head and trunk stability first, then can move the arms and reach, and only after that does fine hand and finger dexterity emerge. This is why this option best describes the progression.

The other statements describe related ideas but not the same spatial sequence. Stability to mobility is a broad principle about postural control preceding movement, not specifically about the body segments from center to periphery. Gross motor to fine motor refers to the type of skill development rather than the anatomical progression. Radial to ulnar pertains to the pattern of grip development in the hand, a more distal detail than the overall proximal-to-distal trajectory.