31 Questions
Which part of the neuron has the function of receiving information?
Dendrites
What is the function of the peripheral nervous system?
Carries out motor functions
What happens when neurons are destroyed by disease?
They cannot be replaced
What does the central nervous system control?
Other organ systems
Which part of the nervous system is responsible for carrying out motor functions based on sensory decisions?
Peripheral nervous system
What is the main function of neurons?
Transmit electrochemical messages
Which type of glial cell forms myelin in the CNS?
Oligodendrocytes
What is the function of the blood-brain barrier in the CNS?
To prevent certain substances from entering the tissues of the CNS
Where is cerebrospinal fluid located within the CNS?
Between the arachnoid mater and pia mater in the subarachnoid space
What is the main function of neurotransmitters in the nervous system?
To initiate muscle contractions and relaxations
Which cells form an intimate covering layer over large neuronal cell bodies in the ganglia of the PNS?
Satellite cells
What does the depolarization of the axon membrane imply?
The inside becomes more positive than the outside
What provides an electrical connection between cells in the nervous system?
Synapse
Which part of the central nervous system descends into the vertebral canal and ends around the level of the first or second lumbar vertebra?
Spinal segments
What is the main function of astrocytes in the nervous system?
Control of blood-brain barrier
What is the main role of the central nervous system (CNS)?
Controlling all other organ systems
What happens when neurons are destroyed by disease?
They lose their ability to divide
What is the function of the dendrites in a neuron?
Receiving information for the neuron
What is the main function of astrocytes in the nervous system?
Supporting and protecting neurons
Where is cerebrospinal fluid located within the CNS?
In the spinal cord and brain
What is the general function of the nervous system?
Detecting and interpreting sensory information
What is the main function of microglia cells in the CNS?
Macrophages of the CNS
Where is the area called the subarachnoid space located?
Between arachnoid mater and pia mater
What is the specific function of ependymal cells in the CNS?
Line cerebral ventricles and central canal of the spinal cord
What is the primary role of satellite cells in the PNS?
Cover large neuronal cell bodies in the ganglia of the PNS
Which part of the neuron provides an electrical connection between cells?
Synaptic knob
What is the primary function of astrocytes in the nervous system?
Guiding axons and providing synaptic support
What is the primary function of neurotransmitters in the nervous system?
Activating neurons to send nerve impulses
Which part of the central nervous system includes a blood-brain barrier (BBB)?
Brain
What is the specific function of oligodendrocytes in the CNS?
Form myelin in the CNS
Where does cerebrospinal fluid (CSF) primarily function within the CNS?
Cushions the CNS
Test your understanding of the organization of the nervous system with this quiz. Explore the central and peripheral nervous systems, their functions, and the complexity of diagnosing and treating nervous system disorders.
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