CNIM FLASHCARDS ACTUAL QUESTIONS WITH DETAILED
ANSWERS
Question 1.
What is Coulomb's Law?
Correct Answer: Like charges repel and unlike charges attract each other
Question 2.
What are examples of good conductors?
Correct Answer: Silver, copper, and gold
Question 3.
What are examples of good insulators?
Correct Answer: Glass, Plastic, Rubber
Question 4.
What is a unit of measure of resistance?
Correct Answer: Ohms
Question 5.
What is resistance?
Correct Answer: The opposition of flow of direct current (DC)
Question 6.
What does impedance measure?
Correct Answer: The opposition of flow of alternating current (AC)
Question 7.
AC is used when checking electrode impedance to:
Correct Answer: Avoid electrode polarization
Question 8.
Ohm's law is?
Correct Answer: V=IxR
Question 9.
If an electrical circuit has a resistance (R) of 1000 ohms and a voltage (E) of 10 volts, the
current (I) will be?
Correct Answer: E=IxR 10= ? x 1000 =10/1000=? 10/1000= 0.01 Answer is I=
0.01amps
,Question 10.
The ability of a capacitor to store an electrical charge is?
Correct Answer: Capacitance
Question 11.
What is inductance?
Correct Answer: Opposition to change in current flow
Question 12.
What are the basic structural unit of the nervous system?
Correct Answer: Neurons
Question 13.
The dendrites extend from what part of the neuron?
Correct Answer: The cell body
Question 14.
Axons conduct nerve impulses in what direction?
Correct Answer: Away from the cell body towards the nerve terminals and
synapses
Question 15.
The resting membrane potential is?
Correct Answer: -70 mV
Question 16.
Sodium (Na+) has a higher concentration inside or outside the cell membrane?
Correct Answer: Outside the cell membrane
Question 17.
Postsynaptic Potentials are?
Correct Answer: EPSP (excitatory) or IPSP (inhibitory)
Question 18.
Name an Excitatory Neurotransmitter
Correct Answer: Glutamate
,Question 19.
Name an Inhibitory Neurotransmitter
Correct Answer: GABA and Glycine
Question 20.
Where is the anatomic location of the Primary Somatosensory Cortex?
Correct Answer: Postcentral gyrus of the parietal lobe just posterior to the
primary motor cotex.
Question 21.
What are the three regions of the brainstem?
Correct Answer: Midbrain, Pons, and Medulla
Question 22.
What part of the Central Nervous System (CNS) controls vital life support systems (BP,
respiration, cardiovascular control)?
Correct Answer: The brainstem
Question 23.
The Medulla contains which cranial nerves?
Correct Answer: VIII, IX, X, XI, XII
Question 24.
At what level of the brianstem does the medial leminiscus cross over (decussate)?
Correct Answer: Medulla
Question 25.
Is the medial lemniscal tract a sensory or motor tract?
Correct Answer: Sensory
Question 26.
Nucleus Gracilis receives sensory information from the upper or lower extremities?
Correct Answer: Lower extremities
, Question 27.
What are the synapses of the dorsal column pathway (medial lemniscal tract) on the way
to the sensory cortex?
Correct Answer: Peripheral nerves ascend to spinal cord via dorsal root, synapse
at medulla in the nucleus gracilis (lower) and nucleus cuneatus (upper) nerve
impulses decussates as it leaves medulla, a synapse occurs at the thalamus and
goes to sensory cortex
Question 28.
How many cervical vertebrae are there?
Correct Answer: 7
Question 29.
Is the lateral corticospinal tract a sensory or a motor tract?
Correct Answer: Motor
Question 30.
Name the major arterial supply to the brain:
Correct Answer: 2 internal carotid arteries (ICA) and 2 vertebral arteries
Question 31.
ICA divides into?
Correct Answer: Anterior Cerebral Artery (ACA) and Middle Cerebral Artery
(MCA)
Question 32.
Does the ACA or the MCA supply the upper extremities?
Correct Answer: MCA
Question 33.
What is the major arterial supply to the brainstem?
Correct Answer: Vertebrobasilar distribution
Question 34.
What is the function of the Circle of Willis?
Correct Answer: The Circle of Willis provides alternate routes for blood to reach
the brain in the event of an occluded carotid or vertebral artery
ANSWERS
Question 1.
What is Coulomb's Law?
Correct Answer: Like charges repel and unlike charges attract each other
Question 2.
What are examples of good conductors?
Correct Answer: Silver, copper, and gold
Question 3.
What are examples of good insulators?
Correct Answer: Glass, Plastic, Rubber
Question 4.
What is a unit of measure of resistance?
Correct Answer: Ohms
Question 5.
What is resistance?
Correct Answer: The opposition of flow of direct current (DC)
Question 6.
What does impedance measure?
Correct Answer: The opposition of flow of alternating current (AC)
Question 7.
AC is used when checking electrode impedance to:
Correct Answer: Avoid electrode polarization
Question 8.
Ohm's law is?
Correct Answer: V=IxR
Question 9.
If an electrical circuit has a resistance (R) of 1000 ohms and a voltage (E) of 10 volts, the
current (I) will be?
Correct Answer: E=IxR 10= ? x 1000 =10/1000=? 10/1000= 0.01 Answer is I=
0.01amps
,Question 10.
The ability of a capacitor to store an electrical charge is?
Correct Answer: Capacitance
Question 11.
What is inductance?
Correct Answer: Opposition to change in current flow
Question 12.
What are the basic structural unit of the nervous system?
Correct Answer: Neurons
Question 13.
The dendrites extend from what part of the neuron?
Correct Answer: The cell body
Question 14.
Axons conduct nerve impulses in what direction?
Correct Answer: Away from the cell body towards the nerve terminals and
synapses
Question 15.
The resting membrane potential is?
Correct Answer: -70 mV
Question 16.
Sodium (Na+) has a higher concentration inside or outside the cell membrane?
Correct Answer: Outside the cell membrane
Question 17.
Postsynaptic Potentials are?
Correct Answer: EPSP (excitatory) or IPSP (inhibitory)
Question 18.
Name an Excitatory Neurotransmitter
Correct Answer: Glutamate
,Question 19.
Name an Inhibitory Neurotransmitter
Correct Answer: GABA and Glycine
Question 20.
Where is the anatomic location of the Primary Somatosensory Cortex?
Correct Answer: Postcentral gyrus of the parietal lobe just posterior to the
primary motor cotex.
Question 21.
What are the three regions of the brainstem?
Correct Answer: Midbrain, Pons, and Medulla
Question 22.
What part of the Central Nervous System (CNS) controls vital life support systems (BP,
respiration, cardiovascular control)?
Correct Answer: The brainstem
Question 23.
The Medulla contains which cranial nerves?
Correct Answer: VIII, IX, X, XI, XII
Question 24.
At what level of the brianstem does the medial leminiscus cross over (decussate)?
Correct Answer: Medulla
Question 25.
Is the medial lemniscal tract a sensory or motor tract?
Correct Answer: Sensory
Question 26.
Nucleus Gracilis receives sensory information from the upper or lower extremities?
Correct Answer: Lower extremities
, Question 27.
What are the synapses of the dorsal column pathway (medial lemniscal tract) on the way
to the sensory cortex?
Correct Answer: Peripheral nerves ascend to spinal cord via dorsal root, synapse
at medulla in the nucleus gracilis (lower) and nucleus cuneatus (upper) nerve
impulses decussates as it leaves medulla, a synapse occurs at the thalamus and
goes to sensory cortex
Question 28.
How many cervical vertebrae are there?
Correct Answer: 7
Question 29.
Is the lateral corticospinal tract a sensory or a motor tract?
Correct Answer: Motor
Question 30.
Name the major arterial supply to the brain:
Correct Answer: 2 internal carotid arteries (ICA) and 2 vertebral arteries
Question 31.
ICA divides into?
Correct Answer: Anterior Cerebral Artery (ACA) and Middle Cerebral Artery
(MCA)
Question 32.
Does the ACA or the MCA supply the upper extremities?
Correct Answer: MCA
Question 33.
What is the major arterial supply to the brainstem?
Correct Answer: Vertebrobasilar distribution
Question 34.
What is the function of the Circle of Willis?
Correct Answer: The Circle of Willis provides alternate routes for blood to reach
the brain in the event of an occluded carotid or vertebral artery
