Generally, a very _______ percent of Na+ in the tubular fluid is reabsorbed, and the reabsorption takes place _________
A.
high; only in the nephron loop
B.
high; along the entire tubule
C.
small; only in the nephron loop
D.
small; along the entire tubule
B
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The ulnar nerve is exposed when it crosses the posterior surface of what process?
A) greater tubercle B) lesser tubercle C) deltoid tuberosity D) medial epicondyle E) trochlea
Answer the following statements true (T) or false (F)
1. The respiratory membrane is found only in the lower respiratory tract. 2. The respiratory membrane plays an important role in air purification. 3. The uppermost part of the pharynx is the oropharynx. 4. Pulmonary ventilation and external respiration are different terms for the same thing.
Genes that play a role in the regulation of mitosis are called
A. proto-oncogenes. B. apoptogenes. C. oncogenes. D. mutagens. E. basal cells.
How many additional pathways supply ATP as needed during muscle contraction?
a. 1 b. 2 c. 3 d. 4 e. 5