Hierarchy classification:

1. top of the aat hierarchies
2. Objects Facet
3. Components (hierarchy name)
4. components (objects parts)
5. [components by specific context]
6. biological components
7. animal components

Additional parents:

1. top of the aat hierarchies
2. Objects Facet
3. Components
4. components
5. components by specific context
6. biological components
7. organs

Anotations

Scope note:

The masses of nerve tissue in the anterior end of organisms, such as in the cranium of humans. The brain integrates sensory information and directs motor responses; in higher vertebrates it is also the center of learning.