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

 Pyramidal cells in the cerebral cortex are examples of

 One of the reasons that action potentials only go in one direction, away from the cell body, is because

 Dr. Janelle notices that in some (although not all) cases of multiple sclerosis (MS) one of the first symptoms is tingling or pain. Which of the following statements best explains why this might happen?

 Which type of glia may actually participate in neural communication?

 Neurochemicals in the axon terminal are often contained within

 A single oligodendrocyte may myelinate axons from an average of _____ different neurons.

 Proteins produced in the cell body are packaged by the

 What does it really mean when scientists say that a neuron has a resting potential of -70mV?

 Near the peak of the action potential, which type of ion begins to leave the cell?

 Prior to release, synaptic vesicles are

 Which of the following is NOT a function that can be influenced by metabotropic receptors?

 At the beginning of an action potential, sodium moves

 What is the difference between diffusion and concentration gradient? How are each important to the process of cellular communication?

 In vertebrates, unipolar cells are common in the

 Exocytosis is the process that results in

 If a membrane potential changes from -70mV to -65mV,

 Which of the following statements best describes the propagation of action potentials?

 There are many more neurons than glia in the nervous system.

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

 The resting potential of neurons