Flashcards in Cerebrum Deck (23):
Origin of the Cerebrum
Fate of the basal portion of the Telencephalon?
Become enveloped becoming islands of grey matter in the subcortex (basal ganglia)
Why is the outer and inner layer of different colors?
Gray matter is unmyelinated
White matter is myelinated
Neuronal organization is described as being?
Asymmetry in fiber size exists, which hemisphere has thicker fibers?
Left Cerebral Hemisphere, dealing with language
External Surface of the Cerebrum is broken up into?
Convolutions/Gyri and Grooves/Fissures/Sulci
What separates the frontal and parietal lobes?
Central Sulcus (Fissure of Rolando)
Precentral gyrus is bounded inferiorly by?
What separates the frontal and parietal lobes from the temporal lobe?
3 Components of the Inferior Frontal Gyrus
Two parts of the inferior parietal gyrus?
Boundaries of the Superior Temporal Gyrus?
Anteriorly: Sylvian Fissure
Posteriorly: Superior Temporal Sulcus
Cingulate gyrus is bounded above by? Below by?
Above: Cingulate Sulcus
Below: Corpus Callosum
Name of the Inner Surface of the Superior Temporal Lobule?
Transverse Temporal Gyri of Heschl
Types of Connecting Fibers in the Cerebrum
Function: Projection Fibers
Connect brain with rest of CNS
Function: Commissural Fibers
Connect the two cerebral hemispheres
Function: Association Fibers
Connect different parts within the same cerebral hemisphere
Anterior fibers of the Anterior Commissure connect?
Olfactory Bulb and Nuclei
Posterior fibers of the Anterior Commissure connect?
Middle and Inferior Temporal Gyri
Where is the Posterior Commissure found?
Function: Posterior Commissure
Interconnects the pretectal nuclei