The nervous system

• Biologie
• Basisschool
• Groep 7

The nervous system

What do you know about the nervous system?

What is the nervous system?

The nervous system includes the brain, spinal cord, and a complex network of nerves. This system sends messages back and forth between the brain and the body. The brain is what controls all the body's functions. The spinal cord runs from the brain down through the back.

Central nervous system

1. Brain
The powerhouse of the body

2. Spinal cord
Connected with the brain and runs down through your back

Peripheral nervous system

Your peripheral nervous system is everything else and includes nerves that travel from your spinal cord and brain to supply your face and the rest of your body. The term “peripheral” is from the Greek word that means around or outside the center.

Which organ belongs to the central nervous system?

1. The heart
2. The lungs
3. The spinal cord
4. The eyes

The peripheral NS

Somatic NS	Autonomic NS
Makes muscles relax or contractllows you to move.	Adjusts as we move through the environment.
Relays information from skin, eyes and muscles to the CNS.	Changing for personal needs.

Autonomic or somatic?
Pupils become smaller when looking at the sun.

1. Autonomic
2. Somatic

Autonomic or somatic?
Pulling hand away after touching a hot stove

1. Autonomic
2. Somatic

Autonomic or somatic?
Produce saliva when thinking about food.

1. Autonomic
2. Somatic

Autonomic or somatic?
Sweating when it's hot

1. Autonomic
2. Somatic

Autonomic or somatic?
Blinking

1. Autonomic
2. Somatic

Neuron

What did we learn about the nervous system?

Project: The nervous system 

The brain	The spinal cord	CNS
PNS	Somatic NS	Autonomic NS