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6. which of the following is false in regards to the histology of the nervous system

  • neurones are excitable
  • more types of glial cells in the PNS
  • glia refers to glue
  • there are two types of cells neurones and glial cells
  • glial cells support and protect neurones

7. which of the following cells are a part of the PNS

  • oligodendrocytes
  • satellite cells
  • astrocytes
  • microglia
  • ependymal cells

8. which is not true of astrocytes

  • mops up K+
  • found in the CNS
  • anchors neurons to cappillaries
  • detect health of neurons
  • most abundent in the body

9. microglia have the ability to cahnge into a macrophage

  • True
  • False

10. which is true of ependymal cells

  • surrounds the neuron cell body
  • circulate CSF by beating cilla
  • insulates neurons
  • impermable to CSF and tissue fluid
  • connected by gap junctions

11. schwan cells surround neuron cell bodies

  • False
  • True

12. in regards to neurones which is false

  • conduct messages in the form of impulses
  • low metabolic rate
  • plasma membrane site of electrical signalling
  • live for a lifetime
  • amiototic

13. what of the following cannot be found in a neuron

  • nuclei
  • mitochondria
  • centrioles
  • dendrites
  • ribosomes

14. which is not true of a cell body of a neurone

  • major biosynthetic centre of neurone
  • mitochondria found throughout
  • rough endoplasmic reticulum that makes protein
  • mainly situated in the PNS
  • microtubules and neurofibrils to maintain shape

15. groups of cell bodies in the CNS are called nuclei and in the PNS they are called ganglia

  • True
  • False

16. which is true of dendrites

  • conveys signals away from the cell body
  • main receptive region of neurone
  • only found in the CNS
  • structure always the same
  • mylenated

17. in regards to the axon which is false

  • single but can have collateral branches
  • may be short or long
  • ends in axon terminal
  • arises from the soma
  • no protein making apparatus

18. neurotransmitters are secreted in the dendrites

  • False
  • True

19. the functions of an axon do not include

  • transmits impulses towards the cell body
  • origin of impulse is in junction of axon and axon hillock
  • the generation of a nerve impulse
  • terminal secretes neurotransmitters

20. which of the following is not a functional classification of a neurone

  • multipoar neuron
  • association neurone
  • sensory/afferent
  • motor/ efferent
  • interneuron