corpus callosum

noun corpus cal·lo·sum \ -ka-ˈlō-səm , -kə- \

|Updated on: 30 Apr 2018

Definition of corpus callosum

plural corpora callosa play \-ka-ˈlō-sə, -kə-\

: the great band of commissural fibers uniting the cerebral hemispheres of higher mammals including humans — see brain illustration

Recent Examples of corpus callosum from the Web

Now, studying mouse brains, the Lees have identified genes that interact with FOXG1, helping explain why one crippled copy of FOXG1 damages the corpus callosum's ability to transmit signals between hemispheres.

— author: pam belluck, Anchorage Daily News, "Infinitesimal odds: A scientist finds her child’s rare illness stems from the gene she studies," 25 Apr. 2018
Clinical data also suggest that concussions involve more than the surface of the brain, as their severity correlates with damage deeper inside, such as deformations around the corpus callosum, the bridge between the brain’s hemispheres.

— adrian cho, Science | AAAS, "Concussions originate from ringing deep inside the brain, modeling suggests," 30 Mar. 2018
For example, the modeling of a hit in which a player lost consciousness shows that in that collision the corpus callosum oscillated at a higher frequency than the surrounding white matter.

— adrian cho, Science | AAAS, "Concussions originate from ringing deep inside the brain, modeling suggests," 30 Mar. 2018
The air cavity had triggered a blood flow blockage to his corpus callosum, the part of the brain that connects the left to the right.

— Fox News, "Medical mystery: Doctors stunned to find 9 cm air-pocket where man's brain should be," 13 Mar. 2018
One, of course, is combining the two images, which is helped by the corpus callosum, the tiny part of your brain which joins the two big hemispheres.

— sandiegouniontribune.com, "6 facts about your eyes," 20 Sep. 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'corpus callosum.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.