A flexor is a skeletal muscle whose shortening moves attached bones
A) away from one another.
B) laterally.
C) medially
D) towards one another.
D) towards one another.
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A(n) ________ is a committed granular leukocyte stem cell that produces neutrophils.
Fill in the blank(s) with the appropriate word(s).
Which of the following is associated with osteoclast reabsorption of bone?
A. Calcium ions are actively transported from blood to bone matrix. B. The protein components of bone matrix are synthesized. C. Osteoblasts form collagen and proteoglycans. D. Blood calcium is decreased. E. Hydrogen ions form an acid environment in bone matrix.
You have just disembarked from an airplane following a cross-country flight. You are experiencing difficulty in hearing and notice that your ears are plugged. To relieve the pressure you try "yawning" to clear the ear canal. It worked. What muscle was involved?
A. Salpingopharyngeus B. Tensor veli palatini C. Levator veli palatini D. Middle constrictor E. Palatopharyngeus
Which statement about muscle fatigue is false?
A. Muscle cells become less able to respond to nerve stimuli. B. The muscle may weaken to the point of being unable to respond. C. Lactic acid build up is a slow process so activity fueled by anaerobic respiration can be extended. D. The levels of lactic acid in the muscle build up during muscle fatigue.