Exam 2: The Brain

A neuron that is in which state is less likely to fire an action potential?

Which part of the neuron is responsible for sending signals to other neurons? Which part for receiving signals?

What makes grey matter grey and white matter white?

What is a local field potential? Name two ways in which it can be measured.

The hollow chambers of the brain are known as _____ and are filled with _____.

What is the name of the major white-matter bundle that connects the two cerebral hemispheres?

_____ is the primary excitatory neurotransmitter in the brain and _____ the primary inhibitory neurotransmitter

Reuptake of neurotransmitters would occur on which side of the synaptic cleft?

The bumps in the brain are known as _____ and the grooves _____.

The signal measured by functional magnetic resonance imaging (fMRI) is most closely related to _____ and the signal measured by diffusion tensor imaging (DTI) is most closely related to _____.

What is myelin? Why is it important to neuronal communication?

Binding of GABA with postsynaptic receptors would make the postsynaptic neuron more likely to depolarize.

What disease is associated with demyelination?

Describe how phase synchrony impacts the effectiveness of neuronal communication.

Presynaptic terminals are located at axons but not dendrites.

What are the five lobes of the cerebrum?

What are the four parts of the central nervous system?

Describe the sequence of events that lead up to and follow a neuron firing an action potential.

fMRI signal can be interpreted as a measure of _____ and DTI signal can be interpreted as a measure of _____.