The inability of the kidneys to excrete adequately to maintain homeostasis is
A) glomerulonephritis.
B) polycystic kidney disease.
C) calculi.
D) renal failure.
E) hematuria.
D
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Joints between the vertebrae include
A) amphiarthroses. B) symphyses. C) diarthroses. D) synostoses. E) All of the answers are correct.
Manganese ions block the calcium channels in the cardiac muscle membrane. How would the presence of manganese in the extracellular fluid affect the contraction of the heart muscle?
A) The refractory period would be shorter. B) The plateau phase of contraction would be longer. C) The contraction phase would be prolonged. D) The heart rate would increase. E) The heart would beat less forcefully.
Sympathetic stimulation of the heart increases action potential conduction velocity through the AV node.
Answer the following statement true (T) or false (F)
Inflammation of the skin is called dermatitis or
A. psoriasis. B. vitiligo. C. bullae. D. eczema. E. decubitus ulcer.