A drop in the ratio of sodium bicarbonate to carbonic acid because of untreated diabetes can be called:
a. uncompensated respiratory acidosis
b. uncompensated respiratory alkalosis
c. uncompensated metabolic acidosis
d. uncompensated metabolic alkalosis
c. uncompensated metabolic acidosis
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What is the mechanism of marrow cavity enlargement in a long bone?
A) There is no mechanism; once formed, the marrow cavity does not change in size. B) Blood vessels entering the marrow cavity enlarge it by eroding away the inner surface of the bone. C) The bone marrow cavity only increases in length, as the epiphyseal plates move apart. D) As bone matrix is added to the external surface, osteoclasts remove matrix in the center of the bone to enlarge the cavity. E) None of the answers are correct.
Most veins below the diaphragm drain into the __________.
What will be an ideal response?
An epidural hematoma typically causes rapid deterioration in the head-injured patient's condition because:
A) numerous axons are severely damaged. B) the meningeal veins are often disrupted. C) it is associated with brisk arterial bleeding. D) concomitant spinal cord injury is often present
The concentrations of which ion is highest outside the axon?