Pars opercularis
Encyclopedia
In the human brain
the Pars opercularis (literally "the part that covers") is the part of the inferior frontal gyrus
that lies between the inferior precentral sulcus
and the ascending ramus of the lateral sulcus
. It is called opercularis because it covers part of the insula
. The pars opercularis together with the pars triangularis
form Broca's area
.
Human brain
The human brain has the same general structure as the brains of other mammals, but is over three times larger than the brain of a typical mammal with an equivalent body size. Estimates for the number of neurons in the human brain range from 80 to 120 billion...
the Pars opercularis (literally "the part that covers") is the part of the inferior frontal gyrus
Inferior frontal gyrus
The inferior frontal gyrus is a gyrus of the frontal lobe . It is labelled gyrus frontalis inferior, its Latin name...
that lies between the inferior precentral sulcus
Precentral sulcus
The precentral sulcus lies parallel to, and in front of, the central sulcus....
and the ascending ramus of the lateral sulcus
Lateral sulcus
-External links:* * * http://www.uams.edu/radiology/education/residency/diagnostic/pdf/sylvian_cistern_RSNA2003.pdf...
. It is called opercularis because it covers part of the insula
Insular cortex
In each hemisphere of the mammalian brain the insular cortex is a portion of the cerebral cortex folded deep within the lateral sulcus between the temporal lobe and the frontal lobe. The cortical area overlying it towards the lateral surface of the brain is the operculum...
. The pars opercularis together with the pars triangularis
Pars triangularis
Pars triangularis is a region of the human cortex, located in the inferior frontal gyrus of the frontal lobe in the corresponding Brodmann area 45...
form Broca's area
Broca's area
Broca's area is a region of the hominid brain with functions linked to speech production.The production of language has been linked to the Broca’s area since Pierre Paul Broca reported impairments in two patients. They had lost the ability to speak after injury to the posterior inferior frontal...
.