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Nervous system - Nervous system central nervous system

4 important questions on Nervous system - Nervous system central nervous system

What is the central nervous system? What does it do?

Includes brain, brain stem and spinal cord.

The CNS processes and intergrates sensory information . It then decides whether to act immediately or whether it can be dealt with later.

What is the brain? What are its three subdivions? Lable them on the diagrm? What does the brain do?

the brain plays a central role in the control of bodily functions, including awareness, movements sensations, thoughts, speech and memory.

What is the brain stem? What does it do? Label diagram.

What does it do?
Control of breathing, swallowing, heart rate, blood pressure, vision and hearing.
It connects the front of the brain to the lower brain structures.
Connects the brain to the spinal cord.

What is the spinal cord? What does it do?

The spinal cord is a long, thin, delicate structure that is part of the central nervous system. It runs from the base of the brain down the middle of the back, inside the spine, which protects it. Its main job is to carry messages between the brain and the rest of the body. These messages allow us to move, feel sensations like touch or pain, and respond quickly through reflexes. Different pairs of spinal nerves branch off at different levels to control specific parts of the body. The spinal cord is protected by layers called the meninges and by cerebrospinal fluid (CSF). Inside, it has grey matter, which contains nerve cell bodies, and white matter, which contains the nerve fibres that carry signals.

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Anatomy and Physiology

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