NU 545 Ch 15 Exam Questions And 100%
Correct Answers
CNS and PNS
two divisions of the nervous sytem
brain and spinal cord
what makes up the central nervous system
cranial and spinal nerves
what makes up the peripheral nervous system
voluntary
control of skeletal muscle in the somatic nervous system is ____
involuntary
control of motor and sensory pathways in the autonomic nervous system is ____
myelin sheath
formed around selected axons to create an insulation allowing for quicker nerve impulse
conduction
dendrite
the bushy, branching extensions of a neuron that receive messages and conduct
impulses toward the cell body
neuron
, transmit and receive electrical and chemical impulses
neuroglial cells
provide physical support, insulation, and nutrients for neurons; "nerve glue"
unipolar neuron
neuron that has a short, single projection from the cell body
pseudounipolar neuron
neuron with continuous dendrite and axon, with cell body off to one side
bipolar neuron
a neuron with one axon and one dendrite attached to its soma
multipolar neuron
neuron that contains one axon and many dendrites; the most common type of neuron in
the nervous system
sensory neurons
carry impulses from peripheral sensory receptors to CNS
interneurons
CNS neurons that internally communicate and intervene between the sensory inputs
and motor outputs; transmit neuron to neuron
motor neurons
carry impulses from CNS to effector organ via efferent pathway
Correct Answers
CNS and PNS
two divisions of the nervous sytem
brain and spinal cord
what makes up the central nervous system
cranial and spinal nerves
what makes up the peripheral nervous system
voluntary
control of skeletal muscle in the somatic nervous system is ____
involuntary
control of motor and sensory pathways in the autonomic nervous system is ____
myelin sheath
formed around selected axons to create an insulation allowing for quicker nerve impulse
conduction
dendrite
the bushy, branching extensions of a neuron that receive messages and conduct
impulses toward the cell body
neuron
, transmit and receive electrical and chemical impulses
neuroglial cells
provide physical support, insulation, and nutrients for neurons; "nerve glue"
unipolar neuron
neuron that has a short, single projection from the cell body
pseudounipolar neuron
neuron with continuous dendrite and axon, with cell body off to one side
bipolar neuron
a neuron with one axon and one dendrite attached to its soma
multipolar neuron
neuron that contains one axon and many dendrites; the most common type of neuron in
the nervous system
sensory neurons
carry impulses from peripheral sensory receptors to CNS
interneurons
CNS neurons that internally communicate and intervene between the sensory inputs
and motor outputs; transmit neuron to neuron
motor neurons
carry impulses from CNS to effector organ via efferent pathway
