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HomeHomework HelpbiologyBrain and Spinal Cord

Brain and Spinal Cord

The brain and spinal cord constitute the central nervous system (CNS), which is responsible for processing and transmitting information throughout the body, coordinating sensory input, motor output, and higher cognitive functions. The brain serves as the control center for thoughts, emotions, and behaviors, while the spinal cord acts as a conduit for signals between the brain and the peripheral nervous system.

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Biology
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Overview

The central nervous system (CNS) is a vital part of the human body, consisting of the brain and spinal cord. It is responsible for processing information, controlling movements, and coordinating bodily functions. The brain is divided into several regions, each with specific roles, while the spinal c...

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Key Terms

Neuron
A nerve cell that transmits signals in the nervous system.

Example: Motor neurons control muscle movements.

Cerebrum
The largest part of the brain, responsible for higher brain functions.

Example: The cerebrum is involved in thinking and memory.

Cerebellum
A brain region that coordinates voluntary movements.

Example: The cerebellum helps maintain balance.

Brainstem
The part of the brain that connects to the spinal cord and controls basic life functions.

Example: The brainstem regulates heart rate and breathing.

Spinal Cord
A long bundle of nerves that runs down the back, transmitting signals to and from the brain.

Example: The spinal cord is involved in reflex actions.

Neurotransmitter
Chemicals that transmit signals across a synapse from one neuron to another.

Example: Dopamine is a neurotransmitter linked to pleasure.

Related Topics

Peripheral Nervous System
The part of the nervous system outside the brain and spinal cord, responsible for connecting limbs to the CNS.
intermediate
Neuroanatomy
The study of the structure of the nervous system, including the brain and spinal cord.
advanced
Neurophysiology
The study of the functions of the nervous system and how it controls body processes.
advanced

Key Concepts

CNS structureNeuronsFunctions of the brainSpinal cord roles