Neurons (Leaving Cert Biology): Quizzes
📚Quizzes
Practise the questions
15 questions from this quiz
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Practise the questions
15 questions from this quiz
How many types of neurons are there?
How many types of neurons are there?
Three
Where do sensory neurons carry electrical impulses from?
Where do sensory neurons carry electrical impulses from?
Sense organs to CNS
Where is the cell body of a sensory neuron located?
Where is the cell body of a sensory neuron located?
Outside the CNS
Where do motor neurons carry electrical impulses to?
Where do motor neurons carry electrical impulses to?
CNS to muscles and glands
Where is the cell body of a motor neuron located?
Where is the cell body of a motor neuron located?
Inside the CNS
What is the function of interneurons?
What is the function of interneurons?
Connect sensory & motor neurons
Which type of neuron does NOT contain a myelin sheath?
Which type of neuron does NOT contain a myelin sheath?
Interneurons
What structural feature characterises motor neurons?
What structural feature characterises motor neurons?
Short dendrites and long axons
In which direction do dendrites transmit impulses?
In which direction do dendrites transmit impulses?
Towards the cell body
What does the cell body produce?
What does the cell body produce?
Neurotransmitters
What is the myelin sheath made from?
What is the myelin sheath made from?
Lipids
What is the main function of the myelin sheath?
What is the main function of the myelin sheath?
Protect & speed up impulses
What do synaptic vesicles contain?
What do synaptic vesicles contain?
Neurotransmitter chemicals
How do Nodes of Ranvier speed up electrical impulses?
How do Nodes of Ranvier speed up electrical impulses?
By allowing impulses to jump node to node
What are effectors?
What are effectors?
Organs/tissues carrying out CNS actions