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Homeostasis and Coordination
Quick questions on The nervous system and reflex arc: N(A)-Level Biology Homeostasis and Coordination
6short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What is the parts of the nervous system?Show answer
The nervous system carries fast electrical messages around the body to coordinate what it does. It has two main parts:
What is the three types of neurone?Show answer
A neurone is a nerve cell that carries an electrical message called a nerve impulse. There are three kinds:
What is the reflex arc?Show answer
A reflex is a fast, automatic response that protects the body, such as pulling your hand off something hot. It does not need the brain to think about it. The message travels along a pathway called the reflex arc, in this order:
What is q1?Show answer
Name the two parts of the central nervous system. [1 mark]
What is q2?Show answer
State the job of a motor neurone. [1 mark]
What is q3?Show answer
Explain why a reflex action is faster than a thought-out movement. [2 marks]
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