Air flows between nasal conchae through the
A) dorsum nasi.
B) apex.
C) external nares.
D) nasal vestibule.
E) superior, middle, and inferior nasal meatuses.
E
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Which of the following blood cell types normally comprises the highest percentage of the blood component labeled II in the figure?
a) eosinophils b) monocytes c) lymphocytes d) neutrophils e) basophils
Which of the following statements about the resting membrane potential is TRUE?
A) It results, in part, from the concentration gradients for Na+ and K+. B) It is due in part to the presence of extracellular proteins. C) It is normally equal to zero volts. D) The inside of the membrane is positively charged compared to the outside.
Bowman’s capsule is:
a. part of the renal tubules b. a network of blood capillaries c. the cup-shaped top part of the nephron d. both A and C above
Contraction of cardiac muscle typically requires:
A. Ca++ influx through voltage-gated Ca++ channels to trigger a rise in cytosolic [Ca++] B. Ca++ influx through voltage-gated Ca++ channels, which is sufficient to support contraction C. activation of MLCK D. phosphorylation of myosin heavy chain E. Ca++ influx through the Na+-Ca++ antiporter