Exam 11: Fundamentals of the Nervous System and Nervous Tissue

When information is delivered within the CNS simultaneously by different parts of the neural pathway, the process is called __________ processing.

Reflexes are rapid, automatic responses to stimuli that will produce the same effect every time.

An action potential is regarded as an example of a positive feedback. Which of the following examples below best illustrates the positive feedback aspect of an action potential?

During depolarization, the inside of the neuron's membrane becomes less negative.

What is the difference between a direct acting neurotransmitter and an indirect acting neurotransmitter?

Which of the following is an excitatory neurotransmitter secreted by motor neurons innervating skeletal muscle?

A second nerve impulse cannot be generated until _________.

When a neurotransmitter like acetylcholine is acting in an excitatory manner which of the following is likely a result of the acetylcholine acting on the postsynaptic cell?

Nerve impulses leading to the brain carry information about cool temperatures on the skin. The nerve fibers sending these signals will most likely belong to which division of the nervous system?

Like all cells, the neurons' internal organization dictates its function. Neurons have relatively many mitochondria, an extensive network of rough endoplasmic reticulum and many clusters of ribosomes. These cellular features indicate all of the following EXCEPT___________ .

Meningitis can be caused by infection of the central nervous system by bacteria. Which cells would be most responsible for removing the infection?

Which of the following is NOT true of graded potentials?

Which of the following correctly describes a graded potential?

Which of the following is NOT a function of dendrites?

Which of the following is false or incorrect?

The action potential is caused by permeability changes in the plasma membrane.

Schwann cells are functionally similar to __________.

These cells in the CNS have cilia that move in order to circulate cerebrospinal fluid.

Collections of nerve cell bodies outside the central nervous system are called_________ .

The part of the nervous system that conducts impulses from the CNS to the skeletal muscles is the_________nervous system.