The structural unit of compact bone is the __________.
A. canaliculius
B. osteon
C. lacuna
Answer: B. osteon
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In striated muscle, Ca2+ regulates contraction by interacting with troponin and tropomyosin. Explain how Ca2+ is able to regulate the timing of contraction as well as affecting the kinetics of contraction
What will be an ideal response?
A 54-year-old man comes to a hospital with abdominal pain, jaundice, loss of appetite, and weight loss. On examination of his radiograms and CT scans, a physician finds a slowly growing tumor in the uncinate process of the pancreas. Which of the follow- ing structures is most likely compressed by this tumor?
(A) Main pancreatic duct (B) Splenic artery (C) Portal vein (D) Superior mesenteric artery (E) Superior pancreaticoduodenal artery
As you climb a tree, you pull your thigh sideways (spreading your legs apart) to rest your foot on a nearby branch. This thigh movement is adduction.
Answer the following statement true (T) or false (F)
Compared to cow milk, human milk has
A. 1/3 the protein. B. 3 times the protein. C. 2 times the protein. D. 1/2 the protein.