Final answer:
Broca's area alone is not sufficient for the complete formation of properly structured oral language. Other brain regions, such as Wernicke's area, are also involved in language processing and comprehension.
Step-by-step explanation:
No, Broca's area alone is not necessary and sufficient for the complete formation of properly structured oral language. While Broca's area is associated with speech production, there are other brain regions and areas involved in language processing. One such area is Wernicke's area, which is responsible for language comprehension. Both Broca's and Wernicke's areas are connected through neural pathways, and damage to either area can result in language deficits. Additionally, other features of the human brain, such as size, hemispheric division, and overall cerebral cortex function, also contribute to language formation.