Neurons
impulse conducting cells that can transmit electrical signals
Neurons
tiny messenger
Neuroglia
glial cels or glia
Neuroglia
support cells that ensure the neurons are functioning properly; do not conduct impulses
Neuroglia
helpers providing support and protection to the neurons
ability to conduct electrical impulses, extree longetivity, no cell division, high metabolic rate
functions of neurons
Dendrites
receptive regions
Cell body
biosynthetic region and receptive region
Axon
impulse generating and conducting region
Soma
cytoplasm contains all the usual organelles and chromatophilic bodies
Dendrites
functions as receptive sites that conduct signals from other neurons toward the cell body
Synapse
the functional junction and the site of communication between neurons
astrocytes, ependymal cells, oligodenderocytes, microglia
central nervous system
Astrocytes
maintain blood brain barrier
Astrocytes
controlling the levels of neurotransmitter around synapses
Astrocytes
regulate ion and providing metabolic support
Ependymal cells
line spinal chord and ventricles of the brain
Ependymal cells
involved in producing cerebrospinal fluid (CSF)
Oligodendrocytes
myelinate CNS axons, provide structural framework
Microglia
brain's immune cells
Microglia
remove dead cells and pathogens by phagocytosis
Satelie cells, Schwann cells
Peripheral nervous system
satelite cells
surrond neuron cell bodues in ganglia
Satelite cells
regulate neurotransmitter levels
Schwann cells
Myelinate neurons in PNS maintenance and regenrations of neurons after injury
Multipolar neurons
one axon and multiple dendrites
Bipolar neurons
quiet messenger of the nervous system
Bipolar neurons
one dendrite and one axon
sight and smell
bipolar neurons help in sensory task such as
Unipolar neurons
involved in tasks lie sensing touch or pressure
Afferent neurons
transmit nerve impulses from effect organs to the spinal cord or brain
Efferent neurons
transmit nerve impulses away from the brain or spinal cord or toward muscles or glands
Interneurons
connect afferent and efferent neurons within the CNS and are responsible for processing information and coordinating responses
Central nervous system
brain and spinal cord
peripheral nervous system
consists of nerves that connect the brain and spinal cord
Peripheral nervous system
automatic nervous system
sensory neurons
all bipolar neurons are
sensory neurons
most unipolar neurons are
interneurons
most multipolar neurons are
motor neurons
some multipolar neurons are
cerebellum
little brain