science mini test

Question 1

What is the Central Nervous System? (CNS)

Answer 1

the part of the nervous system where information is processed. It is made up of the brain and spinal cord.

Question 2

What are the coordination centres?

Answer 2

areas that receive and process information from receptors

Question 3

What are the effectors?

Answer 3

areas (usually muscles or glands) that bring about responses in the body

Question 4

What is homeostasis?

Answer 4

the regulation of the internal conditions of a cell or organism to maintain optimum conditions for function, in response to internal and external changes

Question 5

motor neurones

Answer 5

carry impulses from the central nervous system to the effector organs

Question 6

receptors

Answer 6

cells that detect stimuli – changes in the internal or external environment

Question 7

reflexes

Answer 7

rapid automatic responses of the nervous system that do not involve conscious thought

Question 8

sensory neurone

Answer 8

carry impulses from the sensory organs to the central nervous system

Question 9

stimuli

Answer 9

changes in the external or internal environment that can be detected by receptors