Podcast
Questions and Answers
Which cells in the nervous system are electrically excitable and specialized in information processing?
Which cells in the nervous system are electrically excitable and specialized in information processing?
- Neurons (correct)
- Schwann cells
- Astrocytes
- Oligodendrocytes
What happens to neurons once they reach maturity?
What happens to neurons once they reach maturity?
- They die (correct)
- They become interneurons
- They divide
- They become glial cells
Which cells in the nervous system are involved in the nutrition and maintenance of the nerve cells?
Which cells in the nervous system are involved in the nutrition and maintenance of the nerve cells?
- Schwann cells
- Oligodendrocytes
- Astrocytes (correct)
- Neurons
Which part of the neuron is responsible for transmitting information to other cells?
Which part of the neuron is responsible for transmitting information to other cells?
Which type of neuron has one single stem axonal process that branches to form two processes?
Which type of neuron has one single stem axonal process that branches to form two processes?
Which of the following is responsible for maintaining the resting membrane potential in neurons?
Which of the following is responsible for maintaining the resting membrane potential in neurons?
What is the average resting membrane potential in mammalian neurons?
What is the average resting membrane potential in mammalian neurons?
What happens when the change in membrane potential in a neuron reaches a threshold value?
What happens when the change in membrane potential in a neuron reaches a threshold value?
What is the role of receptors in neurons?
What is the role of receptors in neurons?
What is the equilibrium potential for an ion?
What is the equilibrium potential for an ion?
Which type of axons can have a velocity of over 90 m/s?
Which type of axons can have a velocity of over 90 m/s?
What happens to the current in wider axons?
What happens to the current in wider axons?
What is the term for the current 'jumping' from one node to another in myelinated axons?
What is the term for the current 'jumping' from one node to another in myelinated axons?
What causes the fusion of vesicles with the membrane at the axon terminal?
What causes the fusion of vesicles with the membrane at the axon terminal?
Which class of neurotransmitters does dopamine belong to?
Which class of neurotransmitters does dopamine belong to?
Which ion is the resting membrane more permeable to?
Which ion is the resting membrane more permeable to?
What can change the resting membrane potential of neurons and muscle cells?
What can change the resting membrane potential of neurons and muscle cells?
What happens when neurotransmitters bind to receptors on the postsynaptic membrane?
What happens when neurotransmitters bind to receptors on the postsynaptic membrane?
What is the result of a postsynaptic potential that is more positive than the resting membrane potential?
What is the result of a postsynaptic potential that is more positive than the resting membrane potential?
What causes hyperpolarization in the postsynaptic cell?
What causes hyperpolarization in the postsynaptic cell?
Which organelles are contained in the cell body of a neuron?
Which organelles are contained in the cell body of a neuron?
What is the conducting unit of a neuron?
What is the conducting unit of a neuron?
What is the function of the myelin sheath?
What is the function of the myelin sheath?
What cells in the nervous system produce the myelin sheath?
What cells in the nervous system produce the myelin sheath?
What is the role of dendritic spines in a neuron?
What is the role of dendritic spines in a neuron?
Which one of these accurately describes the difference between the Central Nervous System and the Peripheral Nervous System?
Which one of these accurately describes the difference between the Central Nervous System and the Peripheral Nervous System?
What accurately describes the difference between a neuron and a neuroglial cell?
What accurately describes the difference between a neuron and a neuroglial cell?
What accurately describes the components of a neuron and their function?
What accurately describes the components of a neuron and their function?
What are the classifications of neurons based on their function?
What are the classifications of neurons based on their function?
What accurately describes myelin and its origin?
What accurately describes myelin and its origin?
