FoundationalConceptsNeuroscience

Midbrain

Hindbrain

Forebrain

Auditory

vesicle

Neural

tube

Figure 10.2. Drawing of a human embryo at three weeks after conception.
Early stages of the developing brain are visible—including division into fore-
brain, midbrain, and hindbrain regions. The remainder of the neural tube will
form the spinal cord. The auditory vesicle will become the labyrinth of the
inner ear (see Chapter 15). This drawing is from the 1918 edition of Henry
Gray’s Anatomy of the Human Body.

Cag