Exam 3: Neurophysiology: the Structure and Functions of the Cells of the Nervous System

Compared with sodium channels involved with the action potential,potassium channels 

A neuron's maximum rate of firing is theoretically about  _________ action potentials per second.

What characteristic of EPSPs and IPSPs makes temporal summation possible? 

A major factor contributing to the relative negativity of the neuron's internal environment at rest is 

Larger diameter axons usually transmit information _________ smaller diameter axons.

Compared with unmyelinated axons,myelinated axons 

If a membrane potential changes from -70 mV to -75 mV, 

Pyramidal cells in the cerebral cortex are examples of 

Unipolar neurons have _________ leaving the cell body.

Von Economo neurons are found in 

The arrival of an action potential at the axon terminal results in the opening of 

Neurons that are specialized to transmit commands from the central nervous system to glands and muscles are known as 

The primary advantage of electrical synapses over chemical synapses is 

If the neural membrane allowed sodium ions to move freely,the resting potential of a neuron would be approximately _________mV.

-For each of the four molecules shown in this figure (proteins,potassium,chloride,and sodium),describe how the processes of diffusion and electrical force affect their location in the resting cell.

The vast majority of neurons are classified as 

The influx of calcium ions during exocytosis 

Branches that serve as locations at which information is received from other neurons are known as 

The difference between the intracellular and extracellular environments at the peak of the action potential is approximately _________mV.​ 

The most common type of glia in the brain is the