Cerebral cortex - frontal lobe and parietal lobe

Question 1

Brodmann areas

Answer 1

Region of the cortex based on cytoarchitecture (structure and shape of the cells)
=> cells similar in appearance (shape and size) would be grouped together

Note: Brodmann DID NOT group them by function. But, the categorization in regions of the brain were later to found to have similar functions as well

Question 2

What are the two main functions of the frontal lobe?

Answer 2

1. Motor related functions
2. Prefrontal functions

Question 3

Where is the Primary Motor Cortex housed?

Where is the Secondary Motor (Association ) Cortext?

Answer 3

• within the precentral gyrus (BA 4)
• rostral (in front of) to the primary motor region (BA 6)

Question 4

Prefrontal cortex main functions

Answer 4

• covers frontal lobe (eg BA 4 and BA 6)
• executive functions (eg selective attention)
• personality
• insight foresight

Question 5

Broca’s area is involved in _____
It is located in the ________

Answer 5

• speech production.
• inferior frontal gyrus left (BA 44 45)

Question 6

Primary Somatosensory Cortex
- location?
- functions?

Answer 6

• post central gyrus
• initial processing of tactile (touch, our skin can have these cells) and proprioceptive information (our sense of position, balanced)

=> our skin collects sensory info and sends it to the post central gyrus

Question 7

Inferior Parietal Lobule
- gyri includes?
- functions?

Answer 7

• supramarginal gyrus
• angular gyrus
• language, comprehension and writing

Question 8

Superior parietal lobule
- function?

Answer 8

• spatial orientation and attention