The prolonged electrical depolarization of cardiac muscle cells that occurs during contraction is due primarily to the persistent influx of what ion?
A. Calcium
B. Nitrate
C. Potassium
D. Chloride
E. Sodium
Answer: A
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A growing child develops overactive parathyroid glands, leading to chronic hypercalcemia. Which of the following is most likely a symptom the child will experience?
A. Cardiac arrhythmia caused by lack of calcium B. High plasma phosphate concentration C. Stunted growth due to constant osteoclast stimulation and release of calcium from bones D. High concentration of calcium excreted in the urine
The ________ suture is between the frontal and parietal bones.
Fill in the blank(s) with the appropriate word(s).
The innermost connective tissue layer protecting the kidney and assisting in staving off infection is known as the ________.
A. perirenal fat capsule B. renal fascia C. renal medulla D. fibrous capsule E. hilum
Which of the following is NOT a granulocyte?
A. Basophil B. Neutrophil C. Eosinophil D. Monocyte