Studied by 7 peopleCentral Nervous System
in the brain and spinal cord
Peripheral Nervous System
in parts of the nervous system besides the brain and spinal cord
sensory
afferent
motor
efferent
The peripheral nervous system has how many systems?
2
autonomic nervous system
to cardiac and smooth muscles and glands; involuntary
somatic nervous system
to skeletal muscles; voluntary
parasympathetic nervous system
routine involuntary functions; normal range
sympathetic nervous system
high alert; fight or flight
soma
-interprets electrical changes given by dendrites
-contains the nucleus
dendrites
-where neurons receive most information
-has neurotransmitters (chemical receptors)
axon
-a strong signal gets sent here and becomes an action potential
-covered in myelin (insulatory material)
Nodes of Ranvier
-neuroscopic gaps within the axon
-speeds up the action potentials
axon terminals
-neurotransmitters are released once the signal reaches here and then interacts with the receptors of another dendrite
neuroglia
nerve glue
astrocytes
support and anchor neurons to surrounding capillaries
microglia
provides immune response to central nervous system
ependymal cells
secrete and circulate cerbrospinal fluid (CSF)
Oligodenrocytes
provide myelin insulation to neurons in the central nervous system (CNS)
satellite cells
support and anchor neurons in the peripheral nervous system (PNS)
schwann cells
provide myelin insulation to neurons in the peripheral nervous system (PNS)
found in the CNS
astrocytes, microglia, ependymal, oligodenrocytes
found in the PNS
satellite cells, schwann cells
Note 
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