Asked by JuliAnn Hagar on Apr 30, 2024
Verified
Why does the primary somatosensory area have a larger section dedicated to the fingers and hand, than to the feet and toes?
A) We take in more sensory information with our fingers and hands..
B) The fingers and hand are above the spinal cord termination, while the feet and toes are below it.
C) The feet and toes require more motor area so they get less somatosensory area.
D) The feet and toes are not innervated.
E) The fingers and hand do not have motor area sections, so they are controlled by the somatosensory area.
Primary Somatosensory Area
A region of the cerebral cortex involved in the processing of sensory information from the body.
Fingers and Hand
The terminal part of the human arm consisting of the palm and five digits, crucial for various functions like grasping, manipulating objects, and sensing.
Sensory Information
Data received through the senses, such as sight, hearing, smell, taste, and touch, which is then processed by the brain.
- Acquire knowledge about the configuration and utility of principal regions of the brain and nerves, especially pertaining to their influence on emotional responses, sense perception, and motor function.
- Understand the intricacies of neural pathways and their significance for motor abilities, sensory functions, and pathological conditions.
Verified Answer
JR
Jayla RichardMay 04, 2024
Final Answer :
A
Explanation :
The primary somatosensory area is organized according to the amount of sensory information processed from different parts of the body. The fingers and hands are involved in complex tasks requiring fine sensory discrimination, thus they have a larger representation in the somatosensory cortex compared to the feet and toes.
Learning Objectives
- Acquire knowledge about the configuration and utility of principal regions of the brain and nerves, especially pertaining to their influence on emotional responses, sense perception, and motor function.
- Understand the intricacies of neural pathways and their significance for motor abilities, sensory functions, and pathological conditions.