The wings of pterosaurs (1), bats (2) and birds (3) are analogous as wings, but homologous as forelimbs. Evolutionary ancestry means that structures evolved from some structure in a common ancestor; for example, the wings of bats and the arms of primates are homologous in this sense.
â¦ Broca's area is located in the left frontal lobe, in close proximity of primary motor cortex. Wernicke's Area â¦ Wernicke's area sits in the left temporal lobe, very close to the auditory cortexâthe area involved in hearing.
The study, therefore, claims that Broca's area is the motor center for speech, which assembles and decodes speech sounds in the same way it interprets body language and gestures. Consistent with this idea is that the neural substrate that regulated motor control in the common ancestor of apes and humans was most likely modified to enhance cognitive and linguistic ability.