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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
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
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
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
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