GMS 6474 EXAM QUESTIONS WITH
|\ |\ |\ |\ |\
ANSWERS
During contraction muscle fibers fatigue at different
|\ |\ |\ |\ |\ |\ |\
rates. Type 1 fibers fatigue ______ due to their ______
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
oxidative capacity. |\
last, low|\
last, high
|\
first, low|\
first, high - CORRECT ANSWERS ✔✔last, high
|\ |\ |\ |\ |\ |\
The motor neuron releases this neurotransmitter into the
|\ |\ |\ |\ |\ |\ |\ |\
post-synaptic cleft of the neuromuscular junction to |\ |\ |\ |\ |\ |\ |\
invoke an end-plate potential.
|\ |\ |\
Acetylcholine
Potassium
Nicotine
Calcium - CORRECT ANSWERS ✔✔Acetylcholine
|\ |\ |\ |\
What is the role of Titan within muscle?
|\ |\ |\ |\ |\ |\ |\
,It allows for the rapid depolarization of the muscle cell
|\ |\ |\ |\ |\ |\ |\ |\ |\
It slows the electrical conduction through muscle cells
|\ |\ |\ |\ |\ |\ |\
It tethers myosin filaments to the Z-line
|\ |\ |\ |\ |\ |\
It binds collagen. filaments to the M line
|\ |\ |\ |\ |\ |\ |\
It sequesters Ca++ within the muscle cell - CORRECT
|\ |\ |\ |\ |\ |\ |\ |\ |\
ANSWERS ✔✔It tethers myosin filaments to the Z-line
|\ |\ |\ |\ |\ |\ |\
In skeletal muscle, when there is maximal load, the
|\ |\ |\ |\ |\ |\ |\ |\ |\
velocity of contraction equals 0. This is considered what
|\ |\ |\ |\ |\ |\ |\ |\ |\
type of contraction?
|\ |\
Isotonic
Isometric
Lengthening
Shortening - CORRECT ANSWERS ✔✔Isometric |\ |\ |\ |\
, Duchenne Muscular Dystrophy (DMD) is characterized by
|\ |\ |\ |\ |\ |\ |\
the complete loss of which of the following muscle
|\ |\ |\ |\ |\ |\ |\ |\ |\
proteins?
Dystrophin
Actin
Myosin
Nebulin
Serca - CORRECT ANSWERS ✔✔Dystrophin
|\ |\ |\ |\
With respect to muscle physiology, after binding, the
|\ |\ |\ |\ |\ |\ |\ |\
myosin pulls on actin towards the M line and supersedes
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
it. This causes the release of Pi as filaments are pulled
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
together and move towards the H zone, which results in
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
contraction of the muscle. Which of the following best|\ |\ |\ |\ |\ |\ |\ |\ |\
describes this step of contraction? |\ |\ |\ |\
Dissociation
Activation
Termination
Power Stoke |\
Binding - CORRECT ANSWERS ✔✔Power Stoke
|\ |\ |\ |\ |\
|\ |\ |\ |\ |\
ANSWERS
During contraction muscle fibers fatigue at different
|\ |\ |\ |\ |\ |\ |\
rates. Type 1 fibers fatigue ______ due to their ______
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
oxidative capacity. |\
last, low|\
last, high
|\
first, low|\
first, high - CORRECT ANSWERS ✔✔last, high
|\ |\ |\ |\ |\ |\
The motor neuron releases this neurotransmitter into the
|\ |\ |\ |\ |\ |\ |\ |\
post-synaptic cleft of the neuromuscular junction to |\ |\ |\ |\ |\ |\ |\
invoke an end-plate potential.
|\ |\ |\
Acetylcholine
Potassium
Nicotine
Calcium - CORRECT ANSWERS ✔✔Acetylcholine
|\ |\ |\ |\
What is the role of Titan within muscle?
|\ |\ |\ |\ |\ |\ |\
,It allows for the rapid depolarization of the muscle cell
|\ |\ |\ |\ |\ |\ |\ |\ |\
It slows the electrical conduction through muscle cells
|\ |\ |\ |\ |\ |\ |\
It tethers myosin filaments to the Z-line
|\ |\ |\ |\ |\ |\
It binds collagen. filaments to the M line
|\ |\ |\ |\ |\ |\ |\
It sequesters Ca++ within the muscle cell - CORRECT
|\ |\ |\ |\ |\ |\ |\ |\ |\
ANSWERS ✔✔It tethers myosin filaments to the Z-line
|\ |\ |\ |\ |\ |\ |\
In skeletal muscle, when there is maximal load, the
|\ |\ |\ |\ |\ |\ |\ |\ |\
velocity of contraction equals 0. This is considered what
|\ |\ |\ |\ |\ |\ |\ |\ |\
type of contraction?
|\ |\
Isotonic
Isometric
Lengthening
Shortening - CORRECT ANSWERS ✔✔Isometric |\ |\ |\ |\
, Duchenne Muscular Dystrophy (DMD) is characterized by
|\ |\ |\ |\ |\ |\ |\
the complete loss of which of the following muscle
|\ |\ |\ |\ |\ |\ |\ |\ |\
proteins?
Dystrophin
Actin
Myosin
Nebulin
Serca - CORRECT ANSWERS ✔✔Dystrophin
|\ |\ |\ |\
With respect to muscle physiology, after binding, the
|\ |\ |\ |\ |\ |\ |\ |\
myosin pulls on actin towards the M line and supersedes
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
it. This causes the release of Pi as filaments are pulled
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
together and move towards the H zone, which results in
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
contraction of the muscle. Which of the following best|\ |\ |\ |\ |\ |\ |\ |\ |\
describes this step of contraction? |\ |\ |\ |\
Dissociation
Activation
Termination
Power Stoke |\
Binding - CORRECT ANSWERS ✔✔Power Stoke
|\ |\ |\ |\ |\
