SYNAPSE 101 2 of 4 Gross cortical anatomy of the cerebral hemisphere(lateral aspect) PARIETAL LOBE скачать в хорошем качестве

SYNAPSE 101 2 of 4 Gross cortical anatomy of the cerebral hemisphere(lateral aspect) PARIETAL LOBE

Welcome to SYNAPSE 101… This is part 2 of the Lateral aspect of the gross cortical anatomy of the cerebral hemisphere. Today we will discuss the lateral aspect of parietal lobe. The centrals sulcus of Rolando that divides frontal from parietal lobe. Behind the central sulcus is the postcentral gyrus designated as Brodmann’s area 3,1,2 It functions as our Primary Somatosensory cortex. It is where the : (1) spinothalamic tract that conveys pain and temperature sensation, (2) dorsal column–medial lemniscus pathway that conveys sensations of fine touch, vibration, two-point discrimination, and proprioception (position) from the skin and joints, are projected. After the post central gyrus is the postcentral sulcus. The interparietal sulcus separates superior parietal lobule from inferior parietal lobule. The superior parietal lobule is involved with spatial orientation and receives visual input as well as sensory input from one's hand. Inferior parietal lobule has been involved in the perception of emotions in facial stimuli, and interpretation of sensory information. Over the dominant hemisphere, the Inferior parietal lobule is concerned with language, mathematical operations, and body image, particularly the supramarginal gyrus and the angular gyrus. Let us focus on this Lateral sulcus here or also known as Sylvian fissure. That separates frontal and parietal lobe from the temporal lobe. If we follow the end of the lateral sulcus , you will end up with supramarginal gyrus. Supramarginal gyrus designated as Brodmann’s area 40 for language perception. At the end of superior temporal sulcus is the angular gyrus, Brodmann's area 39 used for language, math and cognition. This is the parieto-occipital sulcus at the lateral aspect and will be more prominent in medial view. This is the lateral aspect of the PARIETAL LOBE.