EXSS 380 Exam 1 Actual study set with
Questions and correct/verified Answers
____ is in greatest concentration outside the cell - ANSW-Na+
Which of the following events results in depolarization of a membrane from a resting? - ANSW-
Movement of Na+ across the membrane
The smallest component of the nervous system that contributes to muscle contraction is the
___________ - ANSW-motor unit
Which type of muscle fiber is activated last during muscle? - ANSW-type IIb
The number of muscle fibers innervated by a single motor neuron is identified by the ______________ -
ANSW-innervation ratio
the interval following generation of the action potential when a neuron can be depolarized
extraordinarily large ESP refers to _______ - ANSW-the relative refractory period
which type of neuron conducts nerve impulses toward the central nervous system? - ANSW-afferent
rank the selective membrane permeability to the following ions from least to greatest - ANSW-Na+, Cl-,
K+
the concentration gradient force has a tendency to _____ - ANSW-move K+ out of the cell
the _____ is/are responsible for increased nerve conduction velocity - ANSW-myelin sheath
input to the soma is achieved via the ___, while output is achieved via the _______ - ANSW-dendrite;
axon
The spinal nerve root that exits the spinal column between the 7th and 8th thoracic vertebrae is named -
ANSW-T8
Which of the following would be represented by the largest area of the primary motor cortex - ANSW-
Muscles of the palmar surface of the hand
The ________ is associated with integration of sensory and motor information to produce smooth
movement. - ANSW-Cerebellum
The mechanism by which a single presynaptic neuron is capable of increasing the EPSP in a postsynaptic
neuron is - ANSW-temporal summation
A neuroscientist is measuring activity from a sensory neuron. During rapid eccentric contraction, she
notices that the activity of the neuron displays high frequency activity. What type of neuron is the
researcher measuring? - ANSW-Type Ia
The _______ neuron is sensitive to static muscle length. - ANSW-Type II
Inhibition of an inhibitory neuron refers to ________. - ANSW-Disinhibition
Questions and correct/verified Answers
____ is in greatest concentration outside the cell - ANSW-Na+
Which of the following events results in depolarization of a membrane from a resting? - ANSW-
Movement of Na+ across the membrane
The smallest component of the nervous system that contributes to muscle contraction is the
___________ - ANSW-motor unit
Which type of muscle fiber is activated last during muscle? - ANSW-type IIb
The number of muscle fibers innervated by a single motor neuron is identified by the ______________ -
ANSW-innervation ratio
the interval following generation of the action potential when a neuron can be depolarized
extraordinarily large ESP refers to _______ - ANSW-the relative refractory period
which type of neuron conducts nerve impulses toward the central nervous system? - ANSW-afferent
rank the selective membrane permeability to the following ions from least to greatest - ANSW-Na+, Cl-,
K+
the concentration gradient force has a tendency to _____ - ANSW-move K+ out of the cell
the _____ is/are responsible for increased nerve conduction velocity - ANSW-myelin sheath
input to the soma is achieved via the ___, while output is achieved via the _______ - ANSW-dendrite;
axon
The spinal nerve root that exits the spinal column between the 7th and 8th thoracic vertebrae is named -
ANSW-T8
Which of the following would be represented by the largest area of the primary motor cortex - ANSW-
Muscles of the palmar surface of the hand
The ________ is associated with integration of sensory and motor information to produce smooth
movement. - ANSW-Cerebellum
The mechanism by which a single presynaptic neuron is capable of increasing the EPSP in a postsynaptic
neuron is - ANSW-temporal summation
A neuroscientist is measuring activity from a sensory neuron. During rapid eccentric contraction, she
notices that the activity of the neuron displays high frequency activity. What type of neuron is the
researcher measuring? - ANSW-Type Ia
The _______ neuron is sensitive to static muscle length. - ANSW-Type II
Inhibition of an inhibitory neuron refers to ________. - ANSW-Disinhibition
