Multiple Choice
Malignant hyperthermia is a hereditary disorder that can increase surgical risk because temperature may be elevated during certain types of anesthesia.The cause of the increased temperature is an increase in cytosolic Ca++ level as a result of an anesthetic-induced:
A) Increase in Ca++ release from the SR,as a result of a mutation in the ryanodine receptor.
B) Decrease in Ca++ uptake by the SR,as a result of a mutation in SERCA.
C) Increase in frequency of the rupturing of skeletal muscle fibers.
D) Decrease in Ca++ extrusion,as a result of hyperphosphorylation of the plasmalemmal Ca++ pump.
E) Increase in Ca++ influx,as a result of a mutation in N-type Ca++ channels.
Correct Answer:
Verified
Correct Answer:
Verified
Q1: The ability to develop increasing levels of
Q2: Endurance training typically increases:<br>A)Ca<sup>++</sup> influx into the
Q3: Relaxation of skeletal muscle after contraction requires:<br>A)Ca<sup>++</sup>
Q4: Stretching a skeletal muscle beyond rest length
Q5: The speed of contraction of skeletal muscle
Q7: During intense exercise,fatigue of skeletal muscle occurs
Q8: The force of contraction of skeletal muscle
Q9: In the absence of extracellular Ca<sup>++</sup>,an action