Broca's center vs convolution of Broca

Broca's center and convolution of Broca both are nouns.

Word	Noun	Adjective	Verb	Adverb
Broca's center	Yes	No	No	No
convolution of Broca	Yes	No	No	No

As nouns, Broca's center and convolution of Broca are synonyms defined as:

Broca's center and convolution of Broca: the motor speech center in the left hemisphere of the brain in most people

Other synonyms of Broca's center include Broca's area, Broca's convolution, Broca's gyrus.

Broca's center (noun)	convolution of Broca (noun)
the motor speech center in the left hemisphere of the brain in most people	the motor speech center in the left hemisphere of the brain in most people