In the Fourth Week of Development, Which Primary Brain Vesicle

Question

In the fourth week of development, which primary brain vesicle is known as the "hindbrain?"
A) rhombencephalon
B) metencephalon
C) prosencephalon
D) myelencephalon
E) mesencephalon

Accepted Answer

During the fourth week of development, the primary brain vesicle known as the rhombencephalon develops into the hindbrain. The rhombencephalon eventually gives rise to important structures such as the cerebellum, which is involved in fine motor control, and the medulla oblongata, which controls vital functions such as respiration and heart rate.