Mer Scott
Quiz by , created more than 1 year ago

• Name the five main types of glial cells and their functions, and contrast these with neuronal structure and function • Describe the structure of a neuron, and understand how it is specialised for conduction of nerve impulses • Describe how the electrical nerve impulse changes to a chemical signal at the synapse • Understand the directions of information flow in the nervous system

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Mer Scott
Created by Mer Scott about 7 years ago
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L16 Cells and Organisation of the Nervous System

Question 1 of 7

1

Glia are for the nervous system. There are 4 types in the , and 1 type in the . These types are highly specialised for functions.
Neurons are cells specialised for of information. They can transmit types of information, and there are of types of neurons!

Drag and drop to complete the text.

    support
    CNS
    PNS
    different
    similar
    transport
    storage
    many
    5
    thousands
    hundreds

Explanation

Question 2 of 7

1

Which cell of the CNS provides nutrients to neurons and ensheaths blood capillaries?

Select one of the following:

  • Astrocyctes

  • Oligodendrocytes

  • Ependymal cells

  • Microglia

Explanation

Question 3 of 7

1

What is the role of microglia?

Select one of the following:

  • To engulf microorganisms and debris, acting as immune cells for the neurons.

  • To supply nutrients to cells and ensheath blood capillaries.

  • To circulate the CSF.

  • To support and ensheath neurons.

Explanation

Question 4 of 7

1

Ependymal cells have cilia and line fluid filled cavities in the brain and spinal cord.

Select one of the following:

  • True
  • False

Explanation

Question 5 of 7

1

In the PNS the axons are sheathed by oligodendrocytes. In the CNS they are myelinated by Schwann cells.

Select one of the following:

  • True
  • False

Explanation

Question 6 of 7

1

The axon hillock precedes the summation zone.

Select one of the following:

  • True
  • False

Explanation

Question 7 of 7

1

Which type of synapse is most common in the CNS?

Select one of the following:

  • Axodendritic

  • Axosomatic

  • Axoaxonic

Explanation