the brain has four lobes frontal parietal temporal and occipital let's start examining the gyri of each lobe by first crossing off the ones that are easiest to remember at the boundary between the frontal and parietal lobes is the central sulcus the gyrus on the frontal lobe side of this sulcus is the precentral gyrus while the gyrus on the parietal lobe side is the post central gyrus next the frontal and temporal lobes each have a set of three gyri superior middle and inferior superior frontal gyrus middle frontal gyrus inferior frontal gyrus superior temporal gyrus middle temporal gyrus inferior temporal gyrus the occipital lobe is a similar situation with the superior occipital gyrus lateral occipital gyrus and inferior occipital gyrus now let's get to the gyri that are harder to remember here you see the orbital gyri near the eye socket the inferior frontal gyrus can be split into three sections the pars orbit Ellis closest to your eye socket or orbit the pars triangularis which resembles a triangle and the pars of Hercule Eris which who knows why they called it that finally let's look at the gyri of the parietal lobe there are disappear and inferior parietal lobule the inferior parietal lobule is split into the angular gyrus and the super marginal gyrus now let's move on to the medial surface the gyrus hugging the corpus callosum is the cingulate gyrus this is the gyrus rectus or straight gyrus you'll see why it's called that when we examine the brain from the bottom view this is the superior frontal gyrus next we see the para central lobule so-called because within it runs the central sulcus then we have the cuneus and precuneus these two are separated by the parietal occipital fissure there is another important fissure called the calcarine fissure the cuneus lies on its superior bank and on its lower bank lies the lingual gyrus so-called because it resembles the shape of the tongue moving on we see the parahippocampal gyrus at the extremity of which lies the uncus then there's the fusiform gyrus also called the occipital temporal gyrus which he used to recognize faces and then we see the inferior and middle temporal gyri peeking out let's look at the brain from the bottom now and I'll keep the medial surface visible next to it so you can see where the gyri continued first there's the straight gyrus and now you can see why it's called that at the anterior end of the brain we see the superior frontal gyrus immediately posterior to it or the orbital gyri bounded laterally by the inferior frontal gyrus next let's look at the gyri of the temporal lobe there is the middle temporal gyrus inferior temporal gyrus we also see the fusiform gyrus and the parahippocampal gyrus moving on to the occipital lobe we see the lingual gyrus and the inferior occipital gyrus we can also see the cingulate gyrus and the cuneus peeking out last view of the brain let's look inside the Sylvian fissure otherwise called the lateral fissure we see Heschl's gyrus or Heschl's convolutions otherwise called the superior transverse temporal gyri to better illustrate here is a coronal cross-section of the brain highlighting the same area now along the top we see the parietal a perk ulam the frontal perk you 'm and the orbital operculum the inner surface belongs to a structure called the insula and there are DeLong gyri of the insula and the short dry of the insula if you liked this video please like and subscribe it would help me make more videos and make sure to comment with any topics you'd like me to cover in future videos also it would be really nice if you could support me on patreon thank you