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| Brain: Parietoöccipital fissure |
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| Fig. 726: Lateral surface of left cerebral hemisphere, viewed from the side. |
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| Fig. 727: Medial surface of left cerebral hemisphere. |
| Latin |
fissura parietoöccipitalis |
| Gray's |
subject #189 820 |
| NeuroNames |
hier-33 |
Only a small part of the Parietoöccipital Fissure (or parieto-occipital sulcus) is seen on the lateral surface of the hemisphere, its chief part being on the medial surface.
The lateral part of the parietoöccipital fissure (Fig. 726) is situated about 5 cm. in front of the occipital pole of the hemisphere, and measures about 1.25 cm. in length.
The medial part of the parietoöccipital fissure (Fig. 727) runs downward and forward as a deep cleft on the medial surface of the hemisphere, and joins the calcarine fissure below and behind the posterior end of the corpus callosum. In most cases it contains a submerged gyrus.
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This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.
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Brain: telencephalon (cerebrum, cerebral cortex, cerebral hemispheres) |
| primary sulci/fissures |
medial longitudinal, lateral, central, parietoöccipital, calcarine, cingulate |
| frontal lobe |
precentral gyrus (primary motor cortex, 4), precentral sulcus, superior frontal gyrus (6, 8), middle frontal gyrus (46), inferior frontal gyrus (Broca's area, 44-pars opercularis, 45-pars triangularis), prefrontal cortex (orbitofrontal cortex, 9, 10, 11, 12, 47) |
| parietal lobe |
postcentral sulcus, postcentral gyrus (1, 2, 3, 43), superior parietal lobule (5), inferior parietal lobule (39-angular gyrus, 40), precuneus (7), intraparietal sulcus |
| occipital lobe |
primary visual cortex (17), cuneus, lingual gyrus, 18, 19 (18 and 19 span whole lobe) |
| temporal lobe |
transverse temporal gyrus (41-42-primary auditory cortex), superior temporal gyrus (38, 22-Wernicke's area), middle temporal gyrus (21), inferior temporal gyrus (20), fusiform gyrus (36, 37) |
| limbic lobe/fornicate gyrus |
cingulate cortex/cingulate gyrus, anterior cingulate (24, 32, 33), posterior cingulate (23, 31),
isthmus (26, 29, 30), parahippocampal gyrus (piriform cortex, 25, 27, 35), entorhinal cortex (28, 34) |
| subcortical/insular cortex |
rhinencephalon, olfactory bulb, olfactory tract, corpus callosum (splenium, genu, rostrum), lateral ventricles, septum pellucidum, ependyma, internal capsule, corona radiata, external capsule, fornix (commissure of fornix), anterior commissure, posterior commissure |
| hippocampal formation |
dentate gyrus, hippocampus, subiculum |
| basal ganglia |
striatum (caudate nucleus, putamen), lentiform nucleus (putamen, globus pallidus), claustrum, extreme capsule, amygdala, nucleus accumbens |
| Some categorizations are approximations, and some Brodmann areas span gyri. |
