CHOICE WITH ANSWERS
Which of the following could indicate that someone like
Christopher Reeve had not totally severed his spinal cord?
A) He regained consciousness at the scene of the accident.
B) He was resuscitated without difficulty.
C) He was able to speak after regaining consciousness.
D) He regained movement in a few muscles in his chest. -
ANSWER-D
The supportive tissue of the nervous system is (are)
A) nerve fiber
B) myelin
C) glial cells
D) nerve processes - ANSWER-C
The division of the nervous system that connects body parts
with the central nervous system is the
A) autonomic nervous system
B) peripheral nervous system
C) somatic system
D) special sense system - ANSWER-B
The nervous system function that makes conscious decisions
possible is the
A) sensory function
B) integrative function
C) motor function
D) none of the above - ANSWER-B
,All neurons have a special area where a nerve impulse begins
called the
A) soma
B) ganglia
C) trigger zone
D) axon - ANSWER-C
All of the following are structural classifications of neurons
except
A) interneurons
B) unipolar neurons
C) multipolar neurons
D) bipolar neurons - ANSWER-A
Movement of sodium and potassium ions across the cell
membrane is dependent on
A) the concentration gradient of the electrolyte
B) changes in electrical charge
C) both
D) neither - ANSWER-C
Which of these characteristics is true regarding the strength of
an action potential?
A) all-or-none followed
B) dependent upon the intensity of the stimulus
C) increased as the intensity of the stimulus increases
D) dependent on the type and amount of neurotransmitter
involved - ANSWER-A
Transmission of impulses across a synapse is made possible
by
A) facilitated transport
B) saltatory conduction
C) neurotransmitters
D) an ATP dependent pump - ANSWER-C
Which of the following neurotransmitters is usually excitatory?
, A) dopamine
B) GABA
C) Glycine
D) acetylcholine - ANSWER-D
When impulses from various sources have an additive effect on
a neuron in the process is called
A) facilitation
B) divergence
C) convergence
D) autonomic switching - ANSWER-C
The function of withdrawal reflexes is to
A) maintain posture
B) limit potential damage
C) both
D) neither - ANSWER-B
The organs of the Central Nervous System are the
A) brain and cranial nerves
B) brain and meninges
C) brain and spinal nerves
D) brain and spinal cord - ANSWER-D
The outer membrane covering the brain is composed of fibrous
connective tissues and is called the
A) dura mater
B) arachnoid mater
C) pia mater
D) periosteum - ANSWER-A
Cerebrospinal fluid is mainly found between the
A) arachnoid mater and the dura mater
B) dura mater and the bones of the skull
C) pia mater and arachnoid mater
D) the vertebrae and the meninges - ANSWER-C