33 Questions
Which of the following is the main body of a neuron?
Soma
Which neurotransmitter is the chief excitatory transmitter in the CNS?
Glutamate
What type of summation occurs when EPSPs created by distant synapses overlap?
Spatial summation
Which of the following is true about dendrites?
They allow signal reception from a large spatial area
Which ions are involved in creating an inhibitory post synaptic potential (IPSP)?
Cl-
Which ions are involved in creating an excitatory post synaptic potential (EPSP)?
ENa
What is the chief inhibitory transmitter in the adult CNS?
GABA
What is the effector part of a neuron?
Axon terminal
Which of the following is an electrotonic response that decays with an exponential time course?
EPSP
What is the sensory portion of a neuron?
Dendrite
Which lobe of the cerebral cortex is responsible for auditory perception, semantics, and memory?
Temporal lobe
Which lobe of the cerebral cortex is the visual processing center?
Occipital lobe
Which division of the nervous system is responsible for responding to and moving about in our environment?
Motor Division
Which level of CNS function controls subconscious body activities such as arterial pressure and respiration?
Lower brain level
Which portion of the nervous system performs specific functions but always functions in association with lower centers?
Cortex
What is the function of the primary motor cortex?
Controlling voluntary movements
Which level of CNS function contains the medulla, pons, mesencephalon, hypothalamus, thalamus, cerebellum, and basal ganglia?
Lower brain level
What is the role of the somatosensory cortex?
Processing tactile information
Which division of the nervous system processes information and creates memory?
Integrative Division
What is the function of the cranial nerves?
Conveying information between the brain and parts of the body
Which type of transmitter is usually excitatory in the CNS?
Small molecule, rapidly acting transmitters
What is the chief inhibitory transmitter in the CNS?
GABA
What is the possible mechanism for causing an epileptic seizure to end?
Synaptic fatigue
Which type of transmitter causes long-term changes and acts on metabotropic receptors?
Neuropeptides, slowing acting transmitters
What is the main function of small molecule, rapidly acting transmitters in the CNS?
Mediate most acute responses of the nervous system
What is the mechanism behind synaptic facilitation?
Build-up of calcium ions in presynaptic terminals
What is the mechanism behind synaptic fatigue?
Build-up of sodium ions in presynaptic terminals
What is the chief excitatory transmitter in the CNS?
Glutamate
What is the protective mechanism for excessive neuronal activity?
Synaptic fatigue
What is the process that takes time in neurotransmission and can be used to calculate the number of chemically connected series neurons in a circuit?
Synaptic delay
Which division of the nervous system is responsible for processing information and creating memory?
Integrative Division
Which lobe of the cerebral cortex is responsible for auditory perception, semantics, and memory?
Temporal lobe
Which type of transmitter is usually excitatory in the CNS?
Small molecule, rapidly acting transmitter
Test your knowledge of the four lobes of the cerebral cortex in this quiz! Learn about the functions and blood supply to the frontal, parietal, temporal, and occipital lobes.
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