Mer Scott
Test por , creado hace más de 1 año

• 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
Creado por Mer Scott hace más de 7 años
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L16 Cells and Organisation of the Nervous System

Pregunta 1 de 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!

Arrastra y suelta para completar el texto.

    support
    CNS
    PNS
    different
    similar
    transport
    storage
    many
    5
    thousands
    hundreds

Explicación

Pregunta 2 de 7

1

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

Selecciona una de las siguientes respuestas posibles:

  • Astrocyctes

  • Oligodendrocytes

  • Ependymal cells

  • Microglia

Explicación

Pregunta 3 de 7

1

What is the role of microglia?

Selecciona una de las siguientes respuestas posibles:

  • 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.

Explicación

Pregunta 4 de 7

1

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

Selecciona uno de los siguientes:

  • VERDADERO
  • FALSO

Explicación

Pregunta 5 de 7

1

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

Selecciona uno de los siguientes:

  • VERDADERO
  • FALSO

Explicación

Pregunta 6 de 7

1

The axon hillock precedes the summation zone.

Selecciona uno de los siguientes:

  • VERDADERO
  • FALSO

Explicación

Pregunta 7 de 7

1

Which type of synapse is most common in the CNS?

Selecciona una de las siguientes respuestas posibles:

  • Axodendritic

  • Axosomatic

  • Axoaxonic

Explicación