Which bone(s) of the crural region are weight bearing?
A. Fibula
B. Calcaneus
C. Tibia
D. Tibia and fibula
E. Femur
Answer: C
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The need to get up during the night to urinate is called ________
A) hypospadias B) frequency C) nocturia D) urgency E) glomerulonephritis
Aldosterone stimulates Na+ absorption and K+ excretion in the kidney. This happens because
A) The cell transcribes and translates more ion transporters to be inserted in the membrane. B) Preformed ion transporters are translocated to the membrane. C) Phosphorylation of existing ion transporters increases their permeability. D) All of the above are possible.
Describe the carbonic acid-bicarbonate buffer system
A) The carbonic acid-bicarbonate buffer system uses the hydrogen ions created by the metabolic and fixed acids to generate carbonic acid which dissociates into H2O and CO2, which can be eliminated by the lungs. B) The carbonic acid-bicarbonate buffer system uses hemoglobin to buffer hydrogen ions. C) The carbonic acid-bicarbonate buffer system uses the side group, the amino group, and the carboxylate group of amino acids to buffer pH changes. D) The carbonic acid-bicarbonate buffer system uses the kidneys to secrete or excrete bicarbonate to buffer pH. E) The carbonic acid-bicarbonate buffer system uses the lungs to exhale CO2 to buffer pH.
Which of the following is an example of a Type IV allergy?
A) itchy rash that follows contact with poison ivy B) hay fever C) anaphylaxis D) cross reactions that occur following the transfusion of an incompatible blood type E) phagocytosis cannot remove antigen-antibody complexes, leading to inflammation and tissue damage