Brain anatomy: Difference between revisions
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[[Image:Brain sagittal section.jpg|thumb|300px|right|A sagittal section of a human brain. Click this image for a high-res version in which you can read the annotations.]] | [[Image:Brain sagittal section.jpg|thumb|300px|right|A sagittal section of a human brain. Click this image for a high-res version in which you can read the annotations.]] | ||
; Corpus | ; Cingulum / cingulum bundle | ||
: The large tract connecting the hemispheres. In a mid-sagittal cutting plane, it looks like a letter C turned on its side, with the tips pointing inferior. | : ??? | ||
; Corona radiata | |||
: A fan-shaped sheet of WM that radiates from the brain stem superior to the cortex. | |||
; Corpus callosum (CC) | |||
: The large tract connecting the hemispheres. In a mid-sagittal cutting plane, it looks like a letter C turned on its side, with the tips pointing inferior. See [http://anatomy.uams.edu/anatomyhtml/atlas_html/n1a5p8.html]. Moving around the CC from the back (posterior), it is subdivided into parts named: | |||
:; Splenium | |||
:: The posterior, slightly bulbous part of the CC. | |||
:; Body | |||
:: The more-or-less flat part of the CC between the splenium and the genu. | |||
:; Genu | :; Genu | ||
:: The anterior part of the CC, where it bends back on itself. "Genu" means "knee". | :: The anterior part of the CC, where it bends back on itself. "Genu" means "knee". | ||
:; Rostrum | :; Rostrum | ||
:: The part of the CC inferior and posterior to the genu. | :: The part of the CC inferior and posterior to the genu. | ||
; [[/Corticospinal tract|Corticospinal tract]] (CST) | |||
: ??? | |||
; Forceps major / forceps posterior | ; Forceps major / forceps posterior | ||
: The posterior projection of the CC (from the splenium) into the occipital lobe. In a transverse cutting plane, it looks like a letter C at the posterior portion of the brain with the tips pointing posterior. | : The posterior projection of the CC (from the splenium) into the occipital lobe. In a transverse cutting plane, it looks like a letter C at the posterior portion of the brain with the tips pointing posterior. See [http://anatomy.uams.edu/anatomyhtml/atlas_html/n1a5p7.html]. | ||
; Forceps minor / forceps anterior | ; Forceps minor / forceps anterior | ||
: The anterior projection of the CC (from the genu) into the cerebrum. In a transverse cutting plane, it looks like a letter C at the anterior portion of the brain with the tips pointing anterior. In other words, it looks sort of like a pair of mandibles over the eyes. | : The anterior projection of the CC (from the genu) into the cerebrum. In a transverse cutting plane, it looks like a letter C at the anterior portion of the brain with the tips pointing anterior. In other words, it looks sort of like a pair of mandibles over the eyes. See [http://anatomy.uams.edu/anatomyhtml/atlas_html/n1a5p7.html]. | ||
; | ; Fornix | ||
: | : ??? | ||
; Inferior longitudinal fasciculus (ILF) | |||
: ??? | |||
; Internal capsule | |||
: ??? | |||
; Superior longitudinal fasciculus (SLF) | ; Superior longitudinal fasciculus (SLF) | ||
: ??? | : ??? | ||
; | ; Thalamus | ||
: ??? | : ??? | ||
; | ; Uncinate fasciculus | ||
: ??? | : ??? | ||
Revision as of 22:52, 4 March 2009
This page is a dumping ground for anatomical terms that come up in conversation with neuroscientists, phrased (hopefully!) in a way that CS people can understand them. Click a tract name for specific information, including instructions for segmenting the tract out of a tractogram in Brainapp.
- Cingulum / cingulum bundle
- ???
- Corona radiata
- A fan-shaped sheet of WM that radiates from the brain stem superior to the cortex.
- Corpus callosum (CC)
- The large tract connecting the hemispheres. In a mid-sagittal cutting plane, it looks like a letter C turned on its side, with the tips pointing inferior. See [1]. Moving around the CC from the back (posterior), it is subdivided into parts named:
- Splenium
- The posterior, slightly bulbous part of the CC.
- Body
- The more-or-less flat part of the CC between the splenium and the genu.
- Genu
- The anterior part of the CC, where it bends back on itself. "Genu" means "knee".
- Rostrum
- The part of the CC inferior and posterior to the genu.
- Corticospinal tract (CST)
- ???
- Forceps major / forceps posterior
- The posterior projection of the CC (from the splenium) into the occipital lobe. In a transverse cutting plane, it looks like a letter C at the posterior portion of the brain with the tips pointing posterior. See [2].
- Forceps minor / forceps anterior
- The anterior projection of the CC (from the genu) into the cerebrum. In a transverse cutting plane, it looks like a letter C at the anterior portion of the brain with the tips pointing anterior. In other words, it looks sort of like a pair of mandibles over the eyes. See [3].
- Fornix
- ???
- Inferior longitudinal fasciculus (ILF)
- ???
- Internal capsule
- ???
- Superior longitudinal fasciculus (SLF)
- ???
- Thalamus
- ???
- Uncinate fasciculus
- ???
External Links
- Anatomical directions and anatomical planes on Wikipedia
- Biology-Online dictionary --- search for text descriptions of terms
- U. Arkansas neuroanatomy atlas images
- Radiopaedia --- a wiki encyclopedia for radiology; search for articles