Physiology III
Neuroscience Exam II
Brodmann's Areas

Brodmann’s
 areas

Location

Function

Projection to

Input received
from

1

Top of post-central gyrus

Edge detection, texture

Skin – RA mostly

2

Next to area 1, toward post-central sulcus

Tells form

Area 5

Deep tissue, joint, pressure position and some skin touch

3a

Bottom of central sulcus

Muscle stretch

Area 4

Deep tissue

3b

Upswing of central sulcus to post-central gyrus

High perceptual processing

Area 1 & 2

Cutaneous SA & RA fibers

4

Upswing of precentral gyrus

Muscle movement

Motor pathways

3a, alpha motor neuron, 5

5

Upswing of postcentral sulcus

Manipulation of object

Area 4

Somatosensory

7

Parietal, next to area 5

Eye-hand coordination, reaching

Visual cortex