Pincer grasp is

Appeared in: RUHS, Jaipur, M.Sc Nursing Entrance Exam-2024

Explanation

The pincer grasp is the coordinated use of the thumb and index finger to pick up small objects.
This action requires the use of small, intrinsic muscles of the hand, which is the definition of a fine motor skill.
It is a significant developmental milestone, with an immature grasp appearing around 9 months and a mature grasp by 12 months.
Fine motor skills are essential for tasks requiring precision and hand-eye coordination.

Option A: Gross motor skills involve the use of large muscle groups for whole-body movements.
Option C: While vision is necessary for hand-eye coordination to locate the object, the physical act of grasping is a motor function, not a visual skill itself.
Option D: Sensation involves perceiving sensory input (like touch or temperature). Grasping is an active motor response, not just a sensory perception.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Developmental Milestones: Fine Motor Skills as background academic context rather than a clinical decision trigger.
Assessing the pincer grasp is a fundamental part of developmental screening in infants to evaluate neurological function and fine motor progression.
A delay in achieving the pincer grasp can be an early indicator of developmental or neurological disorders, prompting further investigation.
What if? If a 15-month-old child has not developed a pincer grasp, it is considered a developmental 'red flag'. This would necessitate a referral for a comprehensive neurological and occupational therapy evaluation to identify any underlying issues.

How to Approach the Question

First, identify the key term in the question: 'Pincer grasp'.
Recall the definition of pincer grasp, which is the action of using the thumb and index finger to pick up small items.
Next, consider the classification of motor skills. Differentiate between 'fine' motor skills (small, precise movements with small muscles) and 'gross' motor skills (large movements with large muscles).
Categorize the pincer grasp based on this classification. Since it involves the small muscles of the fingers, it is a fine motor skill.
Evaluate the given options and select the one that correctly classifies the action.

Concept Tested & Keywords

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E6 Ghai Essential Pediatrics(pp 26-904 of 913) pp. 28-30, 29-31

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