corpus callosum

Examples of corpus callosum in the following topics:

• White Matter of the Cerebrum

  • The great majority of commissural tracts pass through the large corpus callosum.
  • The corpus callosum (Latin: "tough body"), also known as the colossal commissure, is a wide, flat bundle of neural fibers beneath the cortex in the eutherian brain at the longitudinal fissure.
  • The posterior portion of the corpus callosum is called the splenium, the anterior is called the genu (or "knee"), and the area between the two is the truncus or body of the corpus callosum.
  • The rostrum is the part of the corpus callosum that projects posteriorly and inferiorly from the anteriormost genu.
  • Agenesis of the corpus callosum (ACC) is a rare congenital disorder in which the corpus callosum is partially or completely absent.

• Cerebral Hemispheres and Lobes of the Brain

  • The two hemispheres communicate with one another through the corpus callosum.
  • The corpus callosum is a wide, flat bundle of neural fibers beneath the cortex that connects the left and right cerebral hemispheres and facilitates interhemispheric communication.
  • The corpus callosum is sometimes implicated in the cause of seizures; patients with epilepsy sometimes undergo a corpus callostomy, or the removal of the corpus callosum.

• Hemispheric Lateralization

  • A longitudinal fissure separates the human brain into two distinct cerebral hemispheres that are connected by the corpus callosum.
  • Patients with split-brain are individuals who have undergone corpus callosotomy, a severing of a large part of the corpus callosum (usually as a treatment for severe epilepsy).
  • The corpus callosum connects the two hemispheres of the brain and allows them to communicate.

• Psychosurgery

  • Corpus callosotomy is a palliative surgical procedure for the treatment of seizures, as seen in epilepsy.
  • Because the corpus callosum is critical to the spread of epileptic activity between brain hemispheres, the goal of this procedure is to eliminate this pathway.
  • The corpus callosum is severed, after which the brain has much more difficulty sending messages between the hemispheres, although some limited interhemispheric communication is still possible.

• Brain: Cerebral Cortex and Brain Lobes

  • A thick fiber bundle, the corpus callosum, connects the two hemispheres, allowing information to be passed from one side to the other.
  • In other surgeries to treat severe epilepsy, the corpus callosum is cut instead of removing an entire hemisphere.

• Limbic System

  • These lie below the rostrum of the corpus callosum and anterior to the lamina terminalis.

• Characteristics of Mammals

  • Eutherian mammals also possess a specialized structure that links the two cerebral hemispheres, called the corpus callosum.

• Physical Development in Late Adulthood

  • The frontal lobe (which is responsible for the integration of information, judgement, and reflective thought) and corpus callosum tend to lose neurons faster than other areas, such as the temporal and occipital lobes.

• Overview of the Cerebrum

  • A thick fiber bundle, the corpus callosum, connects the two hemispheres, allowing information to be passed from one side to the other.

• Theories of Multiple Intelligence

  • For example, Kim Peek is a savant who was born with considerable brain damage including an enlarged head, a missing corpus callosum (the fibers that connect the two hemispheres of the brain), and a damaged cerebellum.