18 Questions
What is the primary function of astrocytes in the central nervous system?
Bracing and anchoring neurons to blood capillaries
Which type of glial cells produce myelin sheaths in the central nervous system?
Oligodendrocytes
What is the function of microglia in the central nervous system?
Monitor the health of nearby neurons
Which glial cells form myelin sheath around nerve fibers in the peripheral nervous system?
Schwann cells
What is the main role of satellite cells in the peripheral nervous system?
Cushion neuron cell bodies
What is the general function of support cells (neuroglia) in the nervous tissue?
Insulating neurons
What is the function of sensory nerves in the nervous system?
Carry impulses toward the CNS
Which part of a nerve surrounds each individual fiber?
Endoneurium
What is the main function of motor nerves in the nervous system?
Carry impulses away from the CNS
Which pair of cranial nerves extends beyond the head and neck to thoracic and abdominal cavities?
Vagus
Which structure wraps groups of fibers bound into a fascicle in a nerve?
Perineurium
What divides soon after leaving the spinal cord into a dorsal ramus and a ventral ramus?
Spinal nerves
What is the main function of dendrites in a neuron?
Conduct impulses toward the cell body
Which type of cells produce myelin sheaths around axons of the central nervous system (CNS)?
Oligodendrocytes
What is the role of nodes of Ranvier along the axon?
Allow for saltatory conduction
Which term refers to collections of cell bodies outside the central nervous system (CNS) in the peripheral nervous system (PNS)?
Ganglia
What is the main function of axons in a neuron?
Conduct impulses away from the cell body
In terms of functional classifications, which type of neurons transmit impulses from sensory receptors to the central nervous system (CNS)?
Sensory neurons
Test your knowledge on the motor (efferent) division of the nervous system and nervous tissue support cells. Learn about the somatic and autonomic nervous systems, as well as the functions of neuroglia in the CNS.
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