Which of the following is not true of the coronary sinus?
A. It runs through the fat pad of the coronary sulcus.
B. It empties blood into the left atrium of the heart.
C. It is located on the posterior surface of the heart.
D. It drains the oxygen-poor blood from the cardiac veins, and returns it to the heart.
E. All of these are true of the coronary sinus.
Answer: B
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A) this means there are 5 grams of sodium chloride for every 100 mL of water. B) this means there are 5 grams of sodium chloride for every 100 mL of water and there are 5 grams of sodium chloride for every 100 mL of total solution. C) this means there are 5 grams of sodium chloride for every 100 mL of total solution. D) this means there are 5 grams of sodium chloride for every 100 mL of total solution and the solute is water. E) the solute is water.
What type of cell is the precursor for platelets?
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A hemoglobin molecule contains ________ globular protein subunits
A) 1 alpha and 1 beta B) 2 alpha and 2 beta C) 2 alpha and 3 beta D) 4 alpha E) 4 beta
Pancreatic exocrine cells secrete all of the following except
A) lipases and amylase. B) nucleases. C) peptidases and proteinases. D) insulin. E) bicarbonate.