Podcast
Questions and Answers
Where are voltage-gated sodium channels located?
Where are voltage-gated sodium channels located?
- On axon terminals
- On dendrites
- On postsynaptic neurons
- On nerve fibers (correct)
What is the function of cAMP in a postsynaptic cell?
What is the function of cAMP in a postsynaptic cell?
- To open voltage-gated Na+ channels
- To generate an EPSP
- To act as a second messenger (correct)
- To close voltage-gated Ca2+ channels
What is the characteristic of a muscle fiber compared to a nerve fiber?
What is the characteristic of a muscle fiber compared to a nerve fiber?
- It is an entire cell (correct)
- It is a part of a neuron
- It is part of a cell
- It is a collection of cells
What is the effect of Ach on skeletal muscle fibers?
What is the effect of Ach on skeletal muscle fibers?
What is the function of Schwann cells in the peripheral nervous system?
What is the function of Schwann cells in the peripheral nervous system?
What is the location of nuclei in the brain?
What is the location of nuclei in the brain?
What is the outer, cytoplasmic portion of a Schwann cell associated with myelinated axons called?
What is the outer, cytoplasmic portion of a Schwann cell associated with myelinated axons called?
Which type of fibers conduct impulses to produce precise movements of the eyeball?
Which type of fibers conduct impulses to produce precise movements of the eyeball?
What is the significance of calcium ions in neuronal transmission?
What is the significance of calcium ions in neuronal transmission?
What is the characteristic of action potentials along axons and muscle fibers?
What is the characteristic of action potentials along axons and muscle fibers?
What type of conduction would likely experience electrolyte imbalance before others?
What type of conduction would likely experience electrolyte imbalance before others?
What is the relationship between an oligodendrocyte and a myelinated axon?
What is the relationship between an oligodendrocyte and a myelinated axon?
