Podcast
Questions and Answers
What is a characteristic of neurons regarding their lifespan?
What is a characteristic of neurons regarding their lifespan?
- They have a short lifespan of a few years
- They can live for a few decades
- They can live and function for a lifetime (correct)
- They die immediately after birth
What is the function of dendrites in neurons?
What is the function of dendrites in neurons?
- To provide nutrition to the neuron
- To transmit nerve impulses away from the cell body
- To conduct impulses towards the cell body (correct)
- To provide structural support to the neuron
What is the term for the branches that extend from the axon at more or less right angles?
What is the term for the branches that extend from the axon at more or less right angles?
- Neurite extensions
- Axon terminals
- Dendrite branches
- Axon collaterals (correct)
What is essential for the survival of neurons?
What is essential for the survival of neurons?
What is the term for the knob-like structures at the end of axon terminals?
What is the term for the knob-like structures at the end of axon terminals?
How often do axons typically branch?
How often do axons typically branch?
What is the structural link between the PNS and the CNS?
What is the structural link between the PNS and the CNS?
What is the site where the stimulus acts in a reflex arc?
What is the site where the stimulus acts in a reflex arc?
What is the function of the integration center in a reflex arc?
What is the function of the integration center in a reflex arc?
What is a nerve in the PNS?
What is a nerve in the PNS?
How many essential components does a reflex arc have?
How many essential components does a reflex arc have?
What type of behaviors do reflex arcs control?
What type of behaviors do reflex arcs control?
Which type of neuroglial cell forms myelin sheaths in the central nervous system (CNS)?
Which type of neuroglial cell forms myelin sheaths in the central nervous system (CNS)?
What is the main function of the myelin sheath?
What is the main function of the myelin sheath?
What is the main difference between the central nervous system (CNS) and the peripheral nervous system (PNS) in terms of myelination?
What is the main difference between the central nervous system (CNS) and the peripheral nervous system (PNS) in terms of myelination?
What is the composition of the myelin sheath?
What is the composition of the myelin sheath?
What is the main function of satellite cells in the peripheral nervous system (PNS)?
What is the main function of satellite cells in the peripheral nervous system (PNS)?
What is the characteristic of a nerve in the peripheral nervous system (PNS)?
What is the characteristic of a nerve in the peripheral nervous system (PNS)?
