Eight-year-old Ella can use scissors to cut small paper dolls out of construction paper,something she could not do at age 3.What best accounts for her improving dexterity?
A)Increased cortical thickening in the temporal lobe.
B)Increased myelination of the central nervous system.
C)Increased bone ossification.
D)Increased muscle development.

Question

Quizplus · Accepted Answer

Myelination refers to the process of forming a myelin sheath around nerve fibers, which enhances the speed and efficiency of neural communication. As the central nervous system continues to develop in childhood, there is increased myelination of neural pathways, which can lead to improvements in dexterity and fine motor control.

Eight-Year-Old Ella Can Use Scissors to Cut Small Paper Dolls