
______________ are the basic building blocks of the nervous system.    
A.  A. Axons    
B.  B. Dendrites    
C.   C. Neurons    
D.  D. Nerves    
E.      
ANSWER: C

Glial cells provide structural support for __________________.    
A.  A. axons    
B.  B. nerves    
C.  C. dendrites    
D.   D. neurons    
E.      
ANSWER: D

"While the most common form of communication between neurons is chemical, come neurons in the human nervous system communicate ________________."    
A.  A. via dendritic    
B.  B. via synaptic    
C.   C. electrically    
D.  D. presynaptically    
E.      
ANSWER: C

"The most common form of communication between neurons is received and transmitted by means of ___________________."    
A.   A. neurotransmitters.    
B.  B. action potentials.    
C.  C. synaptic clefts.    
D.  D. axons.    
E.      
ANSWER: A

________________ have three components: a cell body, dendrites, and an axon.    
A.  A. Neurotransmitters    
B.  B. Glial cells    
C.  C. Synaptic    
D.   D. Neurons    
E.      
ANSWER: D

Neurons consist of three types:    
A.  A. sensory neurons, motor neurons, and glial neurons.    
B.  B. brain neurons, body neurons, and support neurons.    
C.  C. interneurons, communication neurons, and support neurons.    
D.   D. sensory neurons, motor neurons, and interneurons.    
E.      
ANSWER: D

A ________________ is a type of neuron that conveys information about the environment, such as light and sound, from sense organs to the brain.    
A.   A. sensory neuron    
B.  B. motor neuron    
C.  C. interneuron    
D.  D. synaptic neuron    
E.      
ANSWER: A

A ________________ is a type of neuron whose function is to communicate information between neurons.    
A.  A. sensory neuron    
B.  B. motor neuron    
C.   C. interneuron    
D.  D. synaptic neuron    
E.      
ANSWER: C

What type of neuron conveys information to muscles causing them to relax or contract?    
A.  A. sensory neuron    
B.   B. motor neuron    
C.  C. interneuron    
D.  D. synaptic neuron    
E.      
ANSWER: B

________________ is the main function of neuron.    
A.   A. Communication    
B.  B. Metabolism    
C.  C. Elimination    
D.  D. Transmission    
E.      
ANSWER: A

The _______________ is the part of the neuron that contains the nucleus.    
A.   A. cell body    
B.  B. myelin sheath    
C.  C. axon    
D.  D. synaptic gap    
E.      
ANSWER: A

The nucleus is located at the center of a ________________ and provides energy for the neuron to carry out its function.    
A.  A. glial cell    
B.  B. serotonin    
C.  C. action potential    
D.   D. neuron    
E.      
ANSWER: D

The neuron receives data first through the ________________.    
A.  A. synaptic gap    
B.  B. axon    
C.   C. dendrites    
D.  D. action potential    
E.      
ANSWER: C

The function of the myelin sheath is to    
A.  A. slow the speed of transmission.    
B.   B. enhance the speed of transmission.    
C.  C. expose the axon to interference.    
D.  D. protect the neuron from antibodies.    
E.      
ANSWER: B

The stimulus threshold is the ________________ level of stimulation required to activate a neuron.    
A.   A. minimum    
B.  B. maximum    
C.  C. neutral    
D.  D. committed    
E.      
ANSWER: A

Messages are gathered by the dendrites to the cell body and then transmitted along the axon in the form of a brief electrical impulse called    
A.  A. a communication impulse.    
B.  B. a nerve reaction.    
C.   C. an action potential.    
D.  D. a reflexive impulse.    
E.      
ANSWER: C

Dr. Steward in the video described the centerpiece of the neuron, called the ________________, as the place where the entire metabolic activity takes place.    
A.  A. dendrite    
B.  B. axon    
C.  C. synaptic gap    
D.   D. cell body    
E.      
ANSWER: D

______________ is a state in which a neuron is prepared to activate and communicate its message if it receives sufficient stimulation.    
A.  A. Action potential    
B.   B. Resting potential    
C.  C. Emotional potential    
D.  D. Pain perception    
E.      
ANSWER: B

The space between neurons across which chemical messages pass is called the    
A.  A. chemical receptor site.    
B.   B. synaptic gap.    
C.  C. axon-dendrite gap.    
D.  D. neurotransmitter.    
E.      
ANSWER: B

A neuron is sufficiently stimulated and an action potential occurs, or if not adequately stimulated, no action potential occurs; this rule is referred to as    
A.  A. transmission to transmission synape.    
B.  B. tip-of-tongue.    
C.   C. the all-or-none law.    
D.  D. electrically charged particles.    
E.      
ANSWER: C

The video told the story of Dr. Susie Curtiss and her battle with a neurological disorder called dystonia. Dystonia is primarily associated with    
A.  A. problems with hearing development.    
B.  B. problems with sensory memory.    
C.   C. difficulty in controlling motor functions and coordination.    
D.  D. an immature breathing structure.    
E.      
ANSWER: C

A white, fatty substance that insulates one axon from adjoining axons and increases the speed of neural transmissions is called    
A.  A. an axon.    
B.  B. dendrites.    
C.   C. myelin sheath.    
D.  D. dopamine.    
E.      
ANSWER: C

In the video, Dr. Schweitzer explained that neurological disorders such as dystonia, multiple sclerosis, and Parkinson's disease result in    
A.  A. accidents or injuries.    
B.  B. childhood trauma.    
C.   C. malfunctions in neural transmission.    
D.  D. nutritional deficiencies.    
E.      
ANSWER: C

Communication throughout the ______________ system occurs via neurons, which are specialized cells that receive and transmit information.    
A.   A. nervous    
B.  B. central nervous    
C.  C. autonomic    
D.  D. somatic    
E.      
ANSWER: A

Endorphins have similar effects to opiates because they    
A.  A. can cause personality change.    
B.  B. can cause cellular damage.    
C.   C. reduce the perception of pain and often produce a state of euphoria.    
D.  D. increase the perception of pain.    
E.      
ANSWER: C

Dr. Schweitzer points out in the video that ________________ is one of the most common neurological illnesses and affects approximately one person in 50 over the age of 50.    
A.  A. depression    
B.  B. dystonia    
C.  C. multiple sclerosis    
D.   D. Parkinson's disease    
E.      
ANSWER: D

Dr. Susie Curtiss experienced a postsurgical complication as a result of the brain's ability to heal itself, a phenomenon called    
A.  A. neural balancing.    
B.   B. plasticity.    
C.  C. the neurotransmitter effect.    
D.  D. electromagnetic equilibrium.    
E.      
ANSWER: B

