Gyrus na Broca wani yanki ne na kwakwalwa da ke a gaban lobe, wanda ke da alhakin samar da magana da fahimtar harshe. An ba shi sunan likitan Faransa Paul Broca, wanda ya fara gano mahimmancin yankin wajen sarrafa harshe a karni na 19. Lalacewa ga gyrus na Broca na iya haifar da rashin lafiyar harshe da ake kira Broca's aphasia, wanda ke haifar da wahala wajen samar da magana da iyakacin iya samar da cikakkun jimloli.