Understanding the Human Nervous System and Sensory Organs
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The Nervous System
Central Nervous System (CNS)
Brain
Located inside the head, the brain is divided into three regions:
- Cerebrum: Receives and interprets information from the sense organs. Language, memory, learning, and thinking are located here.
- Cerebellum: Plays an important role in motor control and motor learning. It acts in coordination and precision.
- Brain Stem: Joins the brain and spinal cord. It controls involuntary actions.
Spinal Cord
A long, thin tube running inside the backbone, the spinal cord transports information from the brain to the nerves and carries reflexes.
Protection of the CNS
- Hard: Bones protect the CNS. The brain is protected by the skull, and the spinal cord is protected by the backbone.
- Soft: Meninges, a system of membranes