Actin has an ATPase enzyme.
Answer the following statement true (T) or false (F)
False
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If the pacemaker cells in the SA node become more permeable to potassium ions, the
A) heart rate will increase. B) heart rate will decrease. C) cells will depolarize. D) cells will hyperpolarize. E) heart rate will decrease and cells will hyperpolarize.
The common name for the MP joints is "knuckles."
Answer the following statement true (T) or false (F)
Which of these would result in an increase in the osmolarity of urine?
A. increased levels of vasopressin in the plasma B. increased levels of aldosterone in the plasma C. decreased transport of Na+ and Cl- by the ascending limb of the loop of Henle D. ingestion of a large volume of pure water E. decreased urea permeability of the medullary collecting duct
Which of the following bony landmarks form an articulation?
A. Occipital condyles with the atlas B. Occipital condyles with the axis C. Mandibular fossa with the coronoid notch D. Mandibular fossa with the coronoid process