What ion is necessary for cross-bridging?
A. Iron
B. Sodium
C. Calcium
D. Potassium
Answer: C
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The alveolar epithelium consists primarily of flat, pancake-like simple squamous cells called ________.
A. goblet cells B. tonsils C. pneumocytes D. capillaries
Glands whose ducts have no branches are called ________.
A. alveolar B. acinar C. branchless D. simple E. compound
Charlie is 55 years old and is 45 pounds overweight. Like most men of his age, he carries the weight in his abdomen and jokes about his "beer gut." Due to the extra weight, his spine is developing an abnormal curvature. Explain why the curvature of his
spine is changing and name this condition. What will be an ideal response?
What do geniohyoid, hyoglossus, and stylohyoid have in common?
A) All names reflect direction of muscle fibers. B) Each acts synergistically to elevate the jaw. C) All act on the tongue. D) All names indicate the relative size of the muscle.