Snapquiz - The Central Nervous System and Reflexes

This is the Snapquiz on The Central Nervous System and Reflexes. Click here or use the embedded video if you haven't watched the lesson yet.

Question 1. Which organ is used to sense the direction of gravity?

The eyes.
The ears.
The nose.
The tongue.

Question 2. Why are nervous impulses sent via a synapse to a relay neurone?

The synapse amplifies signals.
The synapse sends signals faster than a neurone.
The synapse filters incorrect signals.
The synapse can send signals to more than one neurone.

Question 3. How are signals passed across a synapse?


Question 4. How do nervous impulses travel away from the central nervous system towards the organ which needs to respond?

Along a motor neurone.
Along a sensory neurone.
Along a relay neurone.
Across a synapse.

Question 5. Which organ is sensitive to the presence of chemicals?

The ears.
The skin.
The nose.
The eyes.

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