Asked by Michael Fuller on Jul 22, 2024
Verified
James,a 6-year-old,can correctly name objects,catch a ball and throw it,and write his ABCs in proper sequence.His younger brother Mark is much less speedy and skillful in all of these areas.What is the BEST explanation for James's superior performance?
A) James most likely eats healthier foods than Mark.
B) James's brain has experienced greater myelination than Mark's.
C) James's frontal cortex is less mature than Mark's.
D) James has fewer dendrites than Mark.
Myelination
The formation of a myelin sheath around the nerves, improving the speed and efficiency of electrical impulses throughout the nervous system.
Frontal Cortex
The part of the brain located at the front of the frontal lobe, responsible for executive functions like decision-making, problem-solving, and controlling impulses.
Dendrites
Tree-like extensions of a neuron that receive signals from other neurons and conduct them toward the cell body.
- Familiarize oneself with the idea and repercussions of myelination during cerebral development.
- Associate the progression of brain development with the enhancement of mental and bodily capabilities in children.
Verified Answer
TK
Tiffany KeittJul 24, 2024
Final Answer :
B
Explanation :
Myelination is the process of forming a myelin sheath around a nerve to allow nerve impulses to move more quickly. As James is able to perform the tasks with greater speed and skill, it is likely that his brain has experienced greater myelination than Mark's, giving him an advantage in these areas.
Learning Objectives
- Familiarize oneself with the idea and repercussions of myelination during cerebral development.
- Associate the progression of brain development with the enhancement of mental and bodily capabilities in children.