Cells and Tissues of the Nervous System Flashcards
true or false
glial cells are non excitable supporting cells
true
what is the cytoplasm in the cell body of a neuron called?
perikaryon
what is the axoplasm?
the cytoplasm in the axon
if the cell body of a neuron is damaged can is the loos reversible?
no
what form the myelin sheath in the CNS?
oligodendrocytes
what forms the myelin sheath in the peripheral nervous system?
schwann cells
what forms grey matter?
> collection of cell bodies and non-myelinated axons (diffuse) or nucleii (localised)
what forms the ganglia?
cell bodies
what does the neural tube form?
the nervous system
how many primary vesicles are then in neural tube formation?
3:
> prosencephalon
> mesencephalon
> rhombencephalon
when does the neural tube develop into primary vesicles?
week 3
what forms the ventricles?
the cavity of the neural tube
what meningeal layer is tough, fibrous and has folds?
the dura mater
true or flase:
the pia mater is avascularised
false
what transverses the subdural space?
blood vessels
