The gall bladder is typically found in the _____region of the abdominopelvic cavity.
A. right hypochondriac
B. left hypochondriac
C. hypogastric
D. umbilical
E. right lumbar
Answer: A
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Cerebrospinal fluid enters the blood circulation at the
A) jugular veins. B) dural drain. C) superior sagittal sinus. D) tentorium cerebelli. E) frontal sinus.
The first phase in hemostasis is
A. elimination of clots. B. coagulation. C. platelet plug formation. D. vascular spasm.
What element is necessary for the production of triiodothyronine (T3 ) and thyroxine (T4)?
A) iodine B) calcium C) magnesium D) potassium
Nutrients are delivered and waste products are carried away from the cells of the posterior segment of the eye by blood vessels. However, the cells in the cornea and lens (in the anterior segment) are avascular
Which is the best explanation for how these cells are maintained? A) The nutrients and waste products of the anterior segment diffuse into and through the vitreous humor of the posterior segment. B) The metabolic activity of these cells is very low. They produce little waste and need few nutrients. C) These cells, like the cells of the corneal layer of the integument are not living cells. D) The aqueous humor is continuously replenished and flows from the ciliary process to drain in the scleral venous sinus.