What are the Three Primary Brain Vesicles That Form from the Neural

Question

What are the three primary brain vesicles that form from the neural tube?
A)brainstem,diencephalon,cerebellum
B)forebrain,midbrain,hindbrain
C)mesencephalon,telencephalon,diencephalon
D)midbrain,pons,medulla oblongata

Accepted Answer

The three primary brain vesicles that form from the neural tube are the forebrain, midbrain, and hindbrain, which correspond to the prosencephalon, mesencephalon, and rhombencephalon, respectively. The forebrain further develops into the telencephalon and diencephalon, the midbrain remains as the mesencephalon, and the hindbrain develops into the metencephalon and myelencephalon, which eventually become the pons, cerebellum, and medulla oblongata. Therefore, option B correctly identifies the three primary brain vesicles. Option A is incorrect as the brainstem and cerebellum form from secondary vesicles. Option C includes two of the correct vesicles but also includes the mesencephalon, which is one of the primary vesicles. Option D correctly identifies three structures but they are not primary brain vesicles.