The
inferior frontal gyrus is a
gyrus of the
frontal lobe (the yellow area of the human brain image to the right). It is labelled
gyrus frontalis inferior, its Latin name. In the yellow area, its superior border is the inferior frontal
sulcus (which divides it from the
gyrus frontalis medius in the yellow area), its inferior border the
lateral fissure (which divides it from the
gyrus temporalis superior in the green area), and its posterior border is the
inferior precentral sulcus (in the yellow area). Above it is the
middle frontal gyrus (the
gyrus frontalis medius), behind it the precentral gyrus (the
gyrus praecentralis), both gyri in the yellow area of the image.