Reflexes and synapses

Question 1

What is different in the reflex process to the response process?

Answer 1

In the reflex process it skips the brain

Question 2

Define synapses

Answer 2

The connection between two neurones.

Question 3

What are nerve signals transferred by?

Answer 3

chemicals which diffuse across the gap

Question 4

What does the chemicals from nerve signals set off?

Answer 4

A new electrical signal to the next neurone

Question 5

What is the synapse process?

Answer 5

1. The electrical impulse arrives at the synapse
2. This causes chemicals in the neurone to move towards the synapse
3. The chemical diffuses across the synapse
4. A new electrical impulse in initiated in the next neurone.

Question 6

Define a reflex action

Answer 6

A response which is quick, involuntary and protective

Question 7

What are some examples of reflex actions and why are they so important?

Answer 7

Blinking: Protects the eyes from bright light or foreign objects
Gagging: Prevents choking
Pupillary reflex: Eye damage
If we accidentally touch something hot. We rapidly move our hand away.

Question 8

What is the passage of information in a reflex called?

Answer 8

Reflex arc