The Brain's Landscape: Sulci & Gyri Motor Lesion Mapping the Brain's Cortex. This MRI beautifully shows the peaks (gyri) and valleys (sulci) that define the brain's surface. These folds are crucial, increasing surface area for higher cognitive functions. The arrow points to a lesion located specifically on the precentral gyrus—the primary motor cortex. Damage here directly affects voluntary movement. . . #Neuroanatomy #collaboration #graduation #SulciAndGyri #Radiology #Neurology #competition #M

BABINSKI SIGN FOR UPPER MOTOR NEURON LESION The Babinski Sign is probable the most famous test for upper motor neuron lesions, which included cervical spondylotic myelopathy as well. It is another pathological reflex and is refered to as the lower limb equivalent of the Hoffmann's Sign. In infants the Babinski sign is commonly observed due to the fact that corticospinal pathways that run from the brain down the spinal cord are not fully myelinated at an age between 12-24 months yet, so the refle