Final answer:
The statement that the most inferior of the 3 primary vesicles of the developing brain is the hindbrain (rhombencephalon) is true, including structures like the pons, cerebellum, and medulla.
Step-by-step explanation:
During embryonic development, the anterior end of the neural tube enlarges into three primary vesicles that establish the basic regions of the nervous system: the forebrain (prosencephalon), the midbrain (mesencephalon), and the hindbrain (rhombencephalon). The rhombencephalon or hindbrain develops into structures such as the pons, cerebellum, and medulla, which are key components of the brain stem and play crucial roles in regulating autonomic functions and coordinating movement.
These primary vesicles continue to develop throughout embryonic development and differentiate into secondary vesicles. The prosencephalon gives rise to the telencephalon, which will become the cerebrum, and the diencephalon, leading to structures like the thalamus and hypothalamus. Thus, the primary and secondary vesicles are essential in establishing the structure of the fully developed adult brain.