Podcast
Questions and Answers
What is the primary function of astrocytes in the central nervous system?
What is the primary function of astrocytes in the central nervous system?
- Monitoring the health of nearby neurons
- Producing myelin sheaths
- Bracing and anchoring neurons to blood capillaries (correct)
- Conducting nerve impulses
Which type of glial cells produce myelin sheaths in the central nervous system?
Which type of glial cells produce myelin sheaths in the central nervous system?
- Oligodendrocytes (correct)
- Satellite cells
- Microglia
- Ependymal cells
What is the function of microglia in the central nervous system?
What is the function of microglia in the central nervous system?
- Wrap around nerve fibers
- Protect neurons from harmful substances in blood
- Monitor the health of nearby neurons (correct)
- Produce cerebrospinal fluid
Which glial cells form myelin sheath around nerve fibers in the peripheral nervous system?
Which glial cells form myelin sheath around nerve fibers in the peripheral nervous system?
What is the main role of satellite cells in the peripheral nervous system?
What is the main role of satellite cells in the peripheral nervous system?
What is the general function of support cells (neuroglia) in the nervous tissue?
What is the general function of support cells (neuroglia) in the nervous tissue?
What is the function of sensory nerves in the nervous system?
What is the function of sensory nerves in the nervous system?
Which part of a nerve surrounds each individual fiber?
Which part of a nerve surrounds each individual fiber?
What is the main function of motor nerves in the nervous system?
What is the main function of motor nerves in the nervous system?
Which pair of cranial nerves extends beyond the head and neck to thoracic and abdominal cavities?
Which pair of cranial nerves extends beyond the head and neck to thoracic and abdominal cavities?
Which structure wraps groups of fibers bound into a fascicle in a nerve?
Which structure wraps groups of fibers bound into a fascicle in a nerve?
What divides soon after leaving the spinal cord into a dorsal ramus and a ventral ramus?
What divides soon after leaving the spinal cord into a dorsal ramus and a ventral ramus?
What is the main function of dendrites in a neuron?
What is the main function of dendrites in a neuron?
Which type of cells produce myelin sheaths around axons of the central nervous system (CNS)?
Which type of cells produce myelin sheaths around axons of the central nervous system (CNS)?
What is the role of nodes of Ranvier along the axon?
What is the role of nodes of Ranvier along the axon?
Which term refers to collections of cell bodies outside the central nervous system (CNS) in the peripheral nervous system (PNS)?
Which term refers to collections of cell bodies outside the central nervous system (CNS) in the peripheral nervous system (PNS)?
What is the main function of axons in a neuron?
What is the main function of axons in a neuron?
In terms of functional classifications, which type of neurons transmit impulses from sensory receptors to the central nervous system (CNS)?
In terms of functional classifications, which type of neurons transmit impulses from sensory receptors to the central nervous system (CNS)?
