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Cortical Anatomy
Achint Singh
Created on September 16, 2019
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Transcript
Cortical Anatomy
Frontal
Temporal
Parietal
Occipital
Tap on the right central sulcus
Signs to identify central sulcus
Most medial extension on the axial image at the vertex
Signs to identify central sulcus
Superior frontal sulcus meets the precentral sulcus. The central sulcus is just behind the precentral sulcus
Signs to identify central sulcus
Superior frontal sulcus meets the precentral sulcus. The central sulcus is just behind the precentral sulcus
Signs to identify central sulcus
Central sulcus is just anterior to the pars marginalis
Which sign is this (central sulcus anterior to pars marginalis)
Basket sign
Omega sign
Transmantle sign
Target sign
Signs to identify central sulcus
Reverse omega sign: Hand knob area is anterior to the central sulcus
RECAP
Most medial extension on the axial image at the vertex
Superior frontal sulcus meets the precentral sulcus. The central sulcus is just behind the precentral sulcus
Central sulcus is just anterior to the pars marginalis
Reverse omega sign: Hand knob area is anterior to the central sulcus
Hover over the left superior frontal gyrus
The superior frontal gyrus is located medial to the superior frontal sulcus which is usually the superior most sulcus located in the AP plane at the vertex
The middle frontal gyrus is located lateral to the superior frontal sulcus which is usually the superior most sulcus located in the AP plane at the vertex
Click on inferior frontal gyrus
The inferior frontal gyrus is located inferior to the inferior frontal sulcus and divided in 3 parts: pars orbitalis
The inferior frontal gyrus is located inferior to the inferior frontal sulcus and divided in 3 parts: pars orbitalis pars triangularis
The inferior frontal gyrus is located inferior to the inferior frontal sulcus and divided in 3 parts: pars orbitalis pars triangularis pars opercularis
Broca's area is located in
Pars Opercularis
Pars orbitalis
Middle frontal gyrus
Superior frontal gyrus
Find the 3 important sulci in the paramidline image
Guess the name of these 3 gyri (fading circles)
Parieto-occipital sulcusCalcarine sulcus Cingulate sulcus