Medial longitudinal fissure

Medial longitudinal fissure
The human brain as viewed from above. Medial longitudinal fissure visible in red, running top to bottom.
longitudinal fissure shown in red (animation)
Details
Identifiers
Latin	fissura longitudinalis cerebri, fissura cerebri longitudinalis
NeuroNames	hier-16
NeuroLex ID	Longitudinal fissure
TA	A14.1.09.007
FMA	83727
*Anatomical terms of neuroanatomy* [edit on Wikidata]

The medial longitudinal fissure (or cerebral fissure, or longitudinal fissure, or interhemispheric fissure) is the deep groove that separates the two hemispheres of the vertebrate brain.

The falx cerebri, a dural brain covering, lies within the medial longitudinal fissure.

The corpus callosum crosses the medial longitudinal fissure.

Additional images

facies dorsalis cerebri gyri
Human brain - left and right hemispheres - superior-lateral view
Basal view of a human brain
Cerebrum. Optic and olfactory nerves. Inferior view. Deep dissection.
Cerebrum. Inferior view. Deep dissection.
Meninges and superficial cerebral veins. Deep dissection. Superior view.

External links

Wikimedia Commons has media related to Longitudinal fissure.

Anatomy image: nerv/brainsup2 at Human Anatomy Lecture (Biology 129), Pennsylvania State University
Diagram at nih.gov

Anatomy of the cerebral cortex of the human brain

Frontal lobe

Superolateral

Prefrontal	Superior frontal gyrus 4 6 8 Middle frontal gyrus 9 10 46 Inferior frontal gyrus: 11 47-Pars orbitalis Broca's area 44-Pars opercularis 45-Pars triangularis Superior frontal sulcus Inferior frontal sulcus

Precentral	Precentral gyrus Precentral sulcus

Medial/inferior

Prefrontal	Superior frontal gyrus 4 6 Medial frontal gyrus 8 9 Paraterminal gyrus/Paraolfactory area 12 Straight gyrus 11 Orbital gyri/Orbitofrontal cortex 10 11 12 Ventromedial prefrontal cortex 10 Subcallosal area 25 Olfactory sulcus Orbital sulcus

Precentral	Paracentral lobule 4 Paracentral sulcus

Both

Parietal lobe

Superolateral	Superior parietal lobule 5 7 Inferior parietal lobule 40-Supramarginal gyrus 39-Angular gyrus Parietal operculum 43 Intraparietal sulcus

Medial/inferior	Paracentral lobule 1 2 3 5 Precuneus 7 Marginal sulcus

Both	Postcentral gyrus/primary somatosensory cortex 1 2 3 Secondary somatosensory cortex 5 Posterior parietal cortex 7

Occipital lobe

Superolateral	Occipital pole of cerebrum Lateral occipital gyrus 18 19 Lunate sulcus Transverse occipital sulcus

Medial/inferior	Visual cortex 17 Cuneus Lingual gyrus Calcarine sulcus

Temporal lobe

Superolateral	Transverse temporal gyrus/Auditory cortex 41 42 Superior temporal gyrus 38 22/Wernicke's area Middle temporal gyrus 21 Superior temporal sulcus

Medial/inferior	Fusiform gyrus 37 Medial temporal lobe 27 28 34 35 36 Inferior temporal gyrus 20 Inferior temporal sulcus

Interlobar
sulci/fissures

Superolateral	Central (frontal+parietal) Lateral (frontal+parietal+temporal) Parieto-occipital Preoccipital notch

Medial/inferior	Medial longitudinal Cingulate (frontal+cingulate) Collateral (temporal+occipital) Callosal sulcus

Limbic lobe

Parahippocampal gyrus	anterior Entorhinal cortex Perirhinal cortex Posterior parahippocampal gyrus Prepyriform area

Cingulate cortex/gyrus	Subgenual area 25 Anterior cingulate 24 32 33 Posterior cingulate 23 31 Isthmus of cingulate gyrus: Retrosplenial cortex 26 29 30

Hippocampal formation	Hippocampal sulcus Fimbria of hippocampus Dentate gyrus Rhinal sulcus

Other	Supracallosal gyrus Uncus Amygdala

Insular cortex

Insular cortex

General

Some categorizations are approximations, and some Brodmann areas span gyri.

This article is issued from Wikipedia - version of the Thursday, May 21, 2015. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.