Podcast
Questions and Answers
What is the function of a motor neuron?
What is the function of a motor neuron?
- Carries sensory information into the brain
- Carries commands to the muscles and organs (correct)
- Carries information from the body and outside world into the brain and spinal cord
- Connects one neuron to another in the same part of the brain or spinal cord
What is the role of interneurons in the nervous system?
What is the role of interneurons in the nervous system?
- Carry information from the body and outside world into the brain and spinal cord
- Carry sensory information into the brain
- Carry commands to the muscles and organs
- Connect one neuron to another in the same part of the brain or spinal cord (correct)
What is the main characteristic of polarization in a neuron?
What is the main characteristic of polarization in a neuron?
- Force where ions are repelled from similarly charged and attracted to oppositely charged ions
- Difference in electrical charge between the inside and outside of the neuron (correct)
- Tendency of ions to move through the membrane to less concentrated side
- Measure of the difference in electrical charge between two points
What is the force that causes ions to move through the membrane to the less concentrated side?
What is the force that causes ions to move through the membrane to the less concentrated side?
What is the small gap that separates neurons so they are not in direct physical contact at the synapse called?
What is the small gap that separates neurons so they are not in direct physical contact at the synapse called?
What are the membrane-enclosed bubbles at axon terminals which store neurotransmitters called?
What are the membrane-enclosed bubbles at axon terminals which store neurotransmitters called?
What type of receptors form the ion channel and open quickly to produce immediate reactions?
What type of receptors form the ion channel and open quickly to produce immediate reactions?
What is the term for the increased polarization which is inhibitory and makes an action potential less likely to occur?
What is the term for the increased polarization which is inhibitory and makes an action potential less likely to occur?
Which term refers to the process of transmitters taken back into the terminals by transporter proteins, where they are repackaged into vesicles for reuse?
Which term refers to the process of transmitters taken back into the terminals by transporter proteins, where they are repackaged into vesicles for reuse?
What is the erroneous belief that a neuron was capable of releasing only a single transmitter called?
What is the erroneous belief that a neuron was capable of releasing only a single transmitter called?
What term refers to the combination of potentials occurring simultaneously at different locations on the dendrites and cell body?
What term refers to the combination of potentials occurring simultaneously at different locations on the dendrites and cell body?
What are the groups of neurons that function together called?
What are the groups of neurons that function together called?
What is the large-scale, multi-university effort to map the brain’s circuits called?
What is the large-scale, multi-university effort to map the brain’s circuits called?
What is the term for the process that increases the presynaptic neuron’s release of neurotransmitter onto the postsynaptic neuron?
What is the term for the process that increases the presynaptic neuron’s release of neurotransmitter onto the postsynaptic neuron?
What are the receptors on presynaptic terminals which sense the amount of transmitter in the cleft called?
What are the receptors on presynaptic terminals which sense the amount of transmitter in the cleft called?
What are the varied intervals between spikes in nerve signals called?
What are the varied intervals between spikes in nerve signals called?
What is the function of the sodium-potassium pump?
What is the function of the sodium-potassium pump?
What are the two types of ion channels based on gating mechanism?
What are the two types of ion channels based on gating mechanism?
What is the function of myelin in the nervous system?
What is the function of myelin in the nervous system?
What is the term for the partial depolarization in a neuron?
What is the term for the partial depolarization in a neuron?
What is the function of Schwann cells in the nervous system?
What is the function of Schwann cells in the nervous system?
What is the term for the phenomenon where action potentials appear to jump from node to node in myelinated axons?
What is the term for the phenomenon where action potentials appear to jump from node to node in myelinated axons?
What is the main function of oligodendrocytes in the brain and spinal cord?
What is the main function of oligodendrocytes in the brain and spinal cord?
What is the term for the abrupt depolarization of the membrane that allows a neuron to communicate?
What is the term for the abrupt depolarization of the membrane that allows a neuron to communicate?
What is the function of microglia in the nervous system?
What is the function of microglia in the nervous system?
What is the term for the form of transmission in which action potentials appear to jump from node to node in myelinated axons?
What is the term for the form of transmission in which action potentials appear to jump from node to node in myelinated axons?
What is the main function of astrocytes in the nervous system?
What is the main function of astrocytes in the nervous system?
What is the term for the phenomenon where action potentials travel down the axon without any decrease in size?
What is the term for the phenomenon where action potentials travel down the axon without any decrease in size?
