Two chromatids are attached at the _____ region.
A) terminal
B) centromere
C) centrosome
D) centriole
Ans: B) centromere
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Which paranasal sinus is rarely symmetrical?
A. maxillary B. ethmoid C. sphenoid D. frontal
Creatinine is cleared from the bloodstream by the ________________________________________
Fill in the blank(s) with correct word
Match each of the following terms with its definition or description.
a. medulla of the kidney b. cortex of the kidney c. pyramids of the kidney d. pelvis of the kidney e. renal corpuscle f. glomerulus g. Bowman’s capsule h. loop of Henle i. proximal convoluted tubule j. juxtaglomerular apparatus k. nephron l. renal papilla m. calyx 1. _____ First part of the renal tubules 2. _____ Part of the nephron that can extend into the medulla of the kidney 3. _____ An expansion of the upper end of the ureter 4. _____ Inner part of the kidney 5. _____ Cup-shaped part of the nephron 6. _____ Consists of Bowman’s capsule and the glomerulus 7. _____ A network of capillaries in the renal corpuscle 8. _____ Outer layer of the kidney 9. _____ Triangular divisions of the medulla of the kidney 10. _____ Part of the nephron that helps regulate blood pressure 11. _____ A division of the renal pelvis into which a renal pyramid opens 12. _____ Narrow, innermost end of a renal pyramid 13. _____ Microscopic structure that makes up the unit of filtration for the kidney
The Venturi mask is MOST useful in the prehospital setting when:
A) a patient requires less than 15% oxygen. B) high-flow oxygen is required for severe hypoxia. C) patients cannot tolerate a nonrebreathing mask. D) a COPD patient requires a long-range transport.