Human beings react to and interact with theirsurroundings

Interaction function

HUMAN BEINGS are the animals with the most complex and

advanced interaction function because our brains are very

developped

Types ofapparatus

RECEPTORS CONTROLLERS EFFECTORS

•They are the organs of the nervous system: The brain, the spinal

cord and the nerves

• The brain is inside the skull. It receives information from the receptors, interprets it and produces a response.

The spinal cord- It is inside the spinal column. It controls the organs of the body and produces quick and simple responses.

The nerves

• The NERVES connect the sense organs to the brain and the spinal cord.