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.
Brocaâs (expressive or motor) Aphasia. Damage to a discrete part of a the brain in the left frontal lobe (Brocaâs area) of the language-dominant hemisphere has been shown to significantly affect use of spontaneous speech and motor speech control.Words may be uttered very slowly and poorly articulated.rimary Progressive Aphasia (PPA). PPA is caused by degeneration in the parts of the brain that control speech and language (the left, or âdominant,â side of the brain in the frontal, temporal and parietal regions that normally control language function).