6.6 The nervous system

• Biologie
• Middelbare school
• vmbo b
• Leerjaar 2

Nerve cell

Nerve cells / neurons 

• Sense organs (receptors) send messages: electric impulses --> to the CNS via Sensory neurons

• CNS send electric impulses --> to muscles and glands (effectors)  telling them wat to do via Motor neurons

• Interneurons  are the connections between sensory and motorneurons.(in the spinal cord and the brain)

Lets exercises

The brain and spinal cord are part of....

1. common nervous system
2. Vital nervous system
3. nervous system
4. Central nervous system

Which will receive a message by motor neurons?

1. Receptors in your skin
2. The spinal cord
3. The muscles in your arm
4. The brain

Sensory neurons carry information

1. away from the brain.
2. both to and from the brain.
3. towards the brain.
4. within the brain

A nerve cell transports an impuls within your central nervous system. This is a....

1. Motor neuron
2. Sensory neuron
3. Interneuron
4. Sensory cell

What type of nerve cell is seen on the left in this example? How do you know this?

1. sensory neurone, it has long dendrites and axon
2. motor neurone, it has one long axon and short dendrites