A mean arterial pressure below 60 mmHg can cause which of the following?
A) Cerebral edema
B) Cardiogenic shock
C) Compensated shock
D) Syncope
E) Neurogenic shock
D
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Which of the following are not aging-dependent problems of the lymphoid system?
A) increased susceptibility to infection B) T cells become less responsive C) appendicitis D) reduced number of helper T cells E) cancer incidence increases
If you desired to control the rate of respiration voluntarily, you might __________.
a. sneeze b. hold your breath c. inflict pain d. engage in an emotional experience
The diaphragm muscle separates the ____ cavity from the abdominopelvic cavity
a. dorsal b. cranial c. spinal d. thoracic
Tom is in respiratory arrest due to an electrical shock. Why does a good samaritan have up to 4 or 5 minutes to begin CPR and save Tom's life?
A. There is a venous reserve of oxygen in Tom's blood. B. There is reserve oxygen in Tom's lungs. C. The Haldane effect lasts up to 5 minutes. D. The ambient PO2 can support life that long. E. Tom's hypoxic drive will keep him alive for up to 5 minutes.