Inserting a nasopharyngeal airway in a patient with CSF drainage from the nose following head trauma may:
A) result in ventricular dysrhythmias secondary to intracranial pressure.
B) cause acute herniation of the brainstem through the foramen magnum.
C) cause the device to enter the brain through a hole caused by a fracture.
D) result in acute hypertension and decreased cerebral perfusion pressure.
Answer: C) cause the device to enter the brain through a hole caused by a fracture.
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A pituitary tumor interferes with FSH secretion. How would this affect a male?
A. There would be no effect as FSH is found only in females. B. He would develop a feminine body contour. C. He would produce too many sperm cells. D. He would have an erection. E. He would not produce sperm cells.
In comparing simple diffusion to facilitated diffusion, you note that ________
A) both require ATP B) both require a specific carrier or protein channel C) both can move substances up, as well as down, a concentration gradient D) both require a concentration gradient
Which of the following statements about bone growth is TRUE?
A. Most growth in long bones results from interstitial growth. B. In the epiphyseal plate, osteoblasts degenerate to form chondrocytes. C. Endochondral growth in long bones occurs at the epiphyseal plate. D. Bones can not grow by appositional growth. E. Appositional bone growth results in increased bone length.
The process used by the cell membrane to take in fluids and dissolved substances is:
a. osmosis b. dialysis c. filtration d. pinocytosis