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Duplicate of Nervous System and Reflex Actions Flashcards | StudBud

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Duplicate of Nervous System and Reflex Actions

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KS3/GCSE #biology #Nervoussystem basics and outline of #reflexaction pathway and #synapses

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Questions 8

Answers

1
The skin is known as a sense organ. Which of these stimuli does it NOT respond to?
Odour
Pain
Temperature
Pressure
2
How do impulse 'jump' between neurones?
Electrical signal is attracted to the other neurone
Chemicals are released and diffuse across the synapse
Electrical signal moves along tiny fibres across the synapse
Chemicals cause the synapse to close, joining both neurones
3
The addition of which neurone tells us that this diagram shows us a reflex action?
Neurone X
Neurone Y
Neurone Z
4
Which of the following is an effector organ?
Muscle
Eye
Brain
Gland
5
A synapse is...
...where the neurone meets the effector.
...a gap between two neurones.
...where the receptor meets the neurone.
...a chemical messenger.
6
A receptor is...
...a special type of cell that detects a stimulus.
...causes a response to a stimulus.
...made up of lots of cells.
...a change in the environment.
7
What neurone carries the electrical impulse from the receptor to the CNS?
Sensory neurone
Receptor neurone
Relay neurone
Motor neurone
8
Electrical impulses reach the central nervous system. Which of these organs make up the CNS?
Brain and heart
Eyes, nose, tongue and skin.
Spinal cord
Brain and Spinal cord