Which of the following muscles of mastication would be responsible for mandibular elevation?
A. Temporalis
B. Lateral pterygoid
C. Stylohyoid
D. Zygomaticus major
E. Zygomaticus minor
A. Temporalis
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Excess iron is stored in the liver and spleen as
A) transferrin. B) urobilin and stercobilin. C) bilirubin and biliverdin. D) hemoglobin. E) hemosiderin and ferritin.
Which of the following does not belong to the quadriceps femoris?
A. Vastus medialis B. Rectus femoris C. Vastus intermedius D. Vastus femoris E. Vastus lateralis
If the extracellular fluid (ECF) becomes hypotonic with respect to the intracellular fluid (ICF), which event will likely occur?
A) Water will move from the cells into the ECF. B) Metabolic generation of water occurs. C) Water will move from the ECF into the cells. D) The volume of the ICF will decrease. E) A large change in the osmotic concentration of the ECF occurs.
The long length of the cardiac action potential, at 200-300 msec, allows for:
A) less calcium ions to enter cells. B) a reduction in strength of the heart's contraction. C) a faster heart rate. D) an opportunity for the heart to fill with blood.