Small veins in the neural tissue of the brain empty directly into the
A) coronary sinuses.
B) dural sinuses.
C) cerebral arterial circle.
D) external jugular vein.
E) vertebral veins.
B) dural sinuses.
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Indicate whether the statement is true or false
Bacteria or other particulate debris contained within inspired air are removed or destroyed by _______.
A. mucus B. vibrissae C. stomach acid D. all of the above
Define open fracture and closed fracture
A) An open fracture is one where the bone pierces the skin; a closed fracture is one where no bone pierces the skin. B) An open fracture is one where no bone pierces the skin; a closed fracture is one where bone pierces the skin. C) An open fracture is one where the bone remains in alignment; a closed fracture is one where the bone is no longer in alignment. D) An open fracture is one where the bone is no longer in alignment; a closed fracture is one where the bone remains in alignment. E) An open fracture is one where the break is along the long axis of the bone; a closed fracture is one where the break is not along the long axis of the bone.
Which of the following solutions is the weakest acid?
A) a solution with a pH of 2.4 B) a solution with a pH of 5.2 C) a solution with a pH of 6.4 D) a solution with a pH of 8.6 E) a solution with a pH of 10.1