BIO 1040 NERVOUS SYSTEM TEST QUESTIONS
AND ANSWERS LATEST UPDATE
central nervous system
brain and spinal cord
peripheral nervous system
sensory and motor nerves
sensory neurons
bring in information from the internal or external environment
interneurons
process information and only located in the CNS
motorneurons
send out commands
white matter
has a myelin sheath that increases signal speed
gray matter
no myelin sheath and decreases signal speed
resting potential
the charge on the neuron at rest
characteristics of resting potential
the membrane is polarized: positive on the outside, negative on the inside
action potential
the charge on the neuron when a signal is sent
characteristics of action potential
depolarization and repolarization along adjacent sections of the neuron
synapse
the connection between two neurons
synaptic cleft
the space between two neurons
neurotransmitters
chemicals that go across the synaptic cleft (excitatory or inhibitory)
synaptic integration
net effect of excitatory and inhibitory signals to achieve complex functions
dorsal nerves
carry sensory information
ventral nerves
carry motor neurons
nerve tracts
information that runs to and from the brain
cerebrum
thinking and sensory motor information
corpus callosum
integrate or connect the two hemispheres
AND ANSWERS LATEST UPDATE
central nervous system
brain and spinal cord
peripheral nervous system
sensory and motor nerves
sensory neurons
bring in information from the internal or external environment
interneurons
process information and only located in the CNS
motorneurons
send out commands
white matter
has a myelin sheath that increases signal speed
gray matter
no myelin sheath and decreases signal speed
resting potential
the charge on the neuron at rest
characteristics of resting potential
the membrane is polarized: positive on the outside, negative on the inside
action potential
the charge on the neuron when a signal is sent
characteristics of action potential
depolarization and repolarization along adjacent sections of the neuron
synapse
the connection between two neurons
synaptic cleft
the space between two neurons
neurotransmitters
chemicals that go across the synaptic cleft (excitatory or inhibitory)
synaptic integration
net effect of excitatory and inhibitory signals to achieve complex functions
dorsal nerves
carry sensory information
ventral nerves
carry motor neurons
nerve tracts
information that runs to and from the brain
cerebrum
thinking and sensory motor information
corpus callosum
integrate or connect the two hemispheres
