When describing the biomechanical properties of cancellous and cortical bone, which of the following statements is true?
a. Cancellous bone is stiffer than cortical bone and can withstand less strain before failure.
b. Cortical bone is stiffer than cancellous bone and can withstand less strain before failure.
c. Cancellous bone is stiffer than cortical bone and can withstand more strain before failure.
d. Cortical bone is stiffer than cancellous bone and can withstand more strain before failure.
ANS: B
The stress-strain curves for cortical and cancellous bone are different. The tougher, outer cortical
bone is stiffer than cancellous bone. This means that it can withstand greater stress but less strain
than cancellous bone.
You might also like to view...
What is the ICD-10 Tabular List?
What will be an ideal response?
Which of the following provides an excellent opportunity to recognize an error before a drug is even dispensed?
Pharmaceutical calculation Pharmaceutical counseling Pharmaceutical compounding All of the above
A patient was admitted with an incomplete spontaneous abortion with a large amount of placental tissue remaining. What is the correct code?
A. 10A07ZZ B. 10D17ZZ C. 10J17ZZ D. 10P07YZ
An ECG monitor technician's main responsibility is to:
A. perform ultrasounds of the heart and blood vessels. B. view the ECG tracings and alert the health care professional of an abnormal heart rhythm. C. assist the physicians with invasive cardiovascular diagnostic tests. D. repair hospital telemetry monitors.