Head control/ neck holding is possible in an infant by: September 2012
**Core Concept**
Head control or neck holding in infants is a crucial milestone in their motor development. It is achieved when the infant gains sufficient strength and coordination in the neck muscles, particularly the sternocleidomastoid and trapezius muscles, to maintain their head in a steady position. This ability typically develops around 2-3 months of age.
**Why the Correct Answer is Right**
The development of head control in infants is closely related to the maturation of their neck muscles and the integration of the proprioceptive and vestibular systems. As the infant grows, their neck muscles become stronger, allowing them to resist the force of gravity and maintain their head in a steady position. This is facilitated by the development of the cervical spine and the maturation of the motor neurons that control the neck muscles.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect as it does not specify a particular age range or developmental milestone.
**Option B:** This option is incorrect as it does not accurately reflect the age range at which head control typically develops in infants.
**Option C:** This option is incorrect as it does not specify a particular age range or developmental milestone.
**Clinical Pearl / High-Yield Fact**
Infants typically develop head control between 2-3 months of age, with most achieving this milestone by 4 months. This ability is an important indicator of normal motor development and is often used as a milestone in pediatric assessments.
**Correct Answer: C. 4 months**