A&P Online Requiz Pres 6 Laney

Which part of the post-synaptic neuron receives messages from the presynaptic neuron?

• axon terminal

• dendrites

• axon

• cell body

• nuclei

What do we call an excitable cell that sends electrochemical impulses when it is stimulated?

• neuroglial cell

• astrocyte

• oligodendrocyte

• neuron

• synapse

What are two jobs of the frontal lobe?

• planning functions

• sensory functions

• motor functions

• hormone control

• language analysis

With spatial summation, a post synaptic neuron receives many excitatory impulses from...

• itself

• one pre-synaptic neuron

• one post-synaptic neuron

• many pre-synaptic neurons

• many post-synaptic neurons

What are three functional classifications for neurons?

• afferent

• autonomic

• efferent

• interneurons

• somatic

Which of the following describes astrocyte cells?

• Associated with blood vessels of the CNS

• Wrap around the axon of a neuron and produce myelin

• Form the blood brain barrier

• Allows selective transmission of messages along the axon

• Line the ventricles and produce cerebral spinal fluid

Which of the following describes ependymal cells?

• Associated with blood vessels of the CNS

• Wrap around the axon of a neuron and produce myelin

• Form the blood brain barrier

• Line the ventricles of the brain

• Produce cerebral spinal fluid

Which describes afferent neurons?

• Transmits info from CNS to PNS

• Transmit info from PNS to CNS

• Carries out the response to a stimuli (motor movement)

• Carries the signal from a stimuli event to the integration center

• Analyses data from a stimuli and decides on a response

Which of the following correctly describe acetylcholine?

• Found mostly in the PNS

• Found mostly in the CNS

• One of the most abundant neurotransmitters

• A type of RECEPTOR on postsynaptic cells

Which correctly describes a G protein-coupled receptor?

• involves the binding of a neurotransmitter directly to the channel, opening the channel

• opens in response to a change in cell membrane voltage

• involves binding of a neurotransmitter to a receptor, which then triggers a channel to open

• involves the binding of vesicles to a receptor, triggering channels to open

• requires inhibitory potentials to close a channel