HES 202 EXAM QUESTIONS AND ANSWERS LATEST
UPDATE
_____________________ is the component of the motor neuron where the
excitatory post-synaptic potentials summate to generate an action potential
a. Dendrites
b. Soma
c. Nerve Terminal
d. Axon Hillock
axon hillock
what would happen if you took a slow motor neuron and made it innervate a fast
contracting muscle?
a) nothing
b) nerve changes properties
c) muscle changes properties
muscle changes properties
Why would the recruitment range of the adductor pollicis be narrower than the
soleus?
a) function or task requirements of the muscle
b) size of muscle fibers
c) none of the above
function or task requirements of the muscle
Ia (primary) afferents send info from _______________ receptors
a) all spindle
b) static
c) dynamic
all spindle
II (secondary) afferents send info from _______________ receptors
a) all spindle
b) static
c) dynamic
static
the afferent fiber that innervates the GTO is the ___ afferent
a) Ia
b) Ib
c) II
d) III
Ib
What technique allows experimenter to record action potentials from sensory
afferents in awake humans?
a) electromyography
b) microneurography
c) electroencephalography
, d) transcranial magnetic stimulation
e) a and b
microneurography
A ______________ is the force output of a muscle in response to one stimulus
a) electromyogram
b) contraction
c) twitch
d) AP
e) a and b
twitch
GTOs detect muscle...
a) active tension
b) passive stretch
c) pressure
active tension
During a fast contraction, recruitment threshold for motor units will be lower or
decrease compared to a slower contraction.
a) True
b) False
true
The soleus will have faster motor unit firing rates or rely more on rate coding than
the adductor policis.
a) True
b) False
false
Which of the following is correct, when referring to the motor unit?
a) The motor unit is the muscle fiber and all the motor neurons it innervates.
b) The fundamental functional unit of force production.
c) Type I motor neurons often innervate fast contracting muscle fibers
d) The first recruited motor units are the largest
The fundamental functional unit of force production.
During a fast contraction, the motor neuron action potential threshold will be
lower or decrease compared to a slower contraction.
a) True
b) False
false
Which of the following are motor neurons?
a) Gamma Alpha
b) Zeta
c) All are types of motor neurons
d) Gamma Static
Gamma static
Muscle force can be increased by two motor unit strategies. What are these two
neural control strategies?
a) Recruitment and saltatory conduction
b) Recruitment and summation
UPDATE
_____________________ is the component of the motor neuron where the
excitatory post-synaptic potentials summate to generate an action potential
a. Dendrites
b. Soma
c. Nerve Terminal
d. Axon Hillock
axon hillock
what would happen if you took a slow motor neuron and made it innervate a fast
contracting muscle?
a) nothing
b) nerve changes properties
c) muscle changes properties
muscle changes properties
Why would the recruitment range of the adductor pollicis be narrower than the
soleus?
a) function or task requirements of the muscle
b) size of muscle fibers
c) none of the above
function or task requirements of the muscle
Ia (primary) afferents send info from _______________ receptors
a) all spindle
b) static
c) dynamic
all spindle
II (secondary) afferents send info from _______________ receptors
a) all spindle
b) static
c) dynamic
static
the afferent fiber that innervates the GTO is the ___ afferent
a) Ia
b) Ib
c) II
d) III
Ib
What technique allows experimenter to record action potentials from sensory
afferents in awake humans?
a) electromyography
b) microneurography
c) electroencephalography
, d) transcranial magnetic stimulation
e) a and b
microneurography
A ______________ is the force output of a muscle in response to one stimulus
a) electromyogram
b) contraction
c) twitch
d) AP
e) a and b
twitch
GTOs detect muscle...
a) active tension
b) passive stretch
c) pressure
active tension
During a fast contraction, recruitment threshold for motor units will be lower or
decrease compared to a slower contraction.
a) True
b) False
true
The soleus will have faster motor unit firing rates or rely more on rate coding than
the adductor policis.
a) True
b) False
false
Which of the following is correct, when referring to the motor unit?
a) The motor unit is the muscle fiber and all the motor neurons it innervates.
b) The fundamental functional unit of force production.
c) Type I motor neurons often innervate fast contracting muscle fibers
d) The first recruited motor units are the largest
The fundamental functional unit of force production.
During a fast contraction, the motor neuron action potential threshold will be
lower or decrease compared to a slower contraction.
a) True
b) False
false
Which of the following are motor neurons?
a) Gamma Alpha
b) Zeta
c) All are types of motor neurons
d) Gamma Static
Gamma static
Muscle force can be increased by two motor unit strategies. What are these two
neural control strategies?
a) Recruitment and saltatory conduction
b) Recruitment and summation
