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OCTOBER 2017 | The Surgical Technologist | 455 #406   October 2017 2 CE credits $12 5. Which zone contributes 40% to 60% of the articular cartilage volume? a. Deep b. Middle c. Superficial d. Calcified 6. The first use of adult particulated carti- lage was detailed in ____. a. 1983 b. 1905 c. 1965 d. 1990 7. What are/is responsible for establish- ing a specialized microenvironment and maintaining the ECM? a. Collagen fibrils b. Chondrocytes c. Cartilage d. None of the above 8. Chondrocytes in which layer are flat in shape? a. Deep b. Calcified c. Middle d. Superficial 1. Articular hyaline cartilage covers the _____ portions of the femur that com- municate with the rest of the knee joint. a. Proximal b. Anterior c. Superior d. Distal 2. Articular cartilage thickness ranges approximately from ____. a. 1-3 mm b. 2-5 cm c. 1-5 mm d. 1-5 cm 3. As much as 80% of the ECMwet weight consists of ______. a. Water b. Collagen c. Protein d. Molecules 4. ____ collagen is significant in articular cartilage structure, as it accounts for 90% to 95% of the collagen in ECM. a. Type I b. Type II c. Type III d. Type IV 9. Which grade has lesions that are less than 50% of the articular cartilage depth? a. Grade 0 b. Grade Ia c. Grade II d. Grade IIIc 10. After small, successful _____ trials, PJAC was approved by the FDA in 2007 for cartilage restoration in the knee, hip, ankle and shoulder. a. Feline b. Equine c. Rodent d. Canine PJACT: TREATING ARTICULAR CARTILAGE DEFECTS # 406   October 2017 2 CE CREDITS $12 NBSTSA Certification No. AST Member No. ■ My address has changed. The address below is the new address. Name Address City State Zip Telephone ■ Check enclosed  ■ Check Number ■ Visa ■ MasterCard  ■ American Express Credit Card Number Expiration Date a b c d a b c d 1 ■ ■ ■ ■ 11 ■ ■ ■ ■ 2 ■ ■ ■ ■ 12 ■ ■ ■ ■ 3 ■ ■ ■ ■ 13 ■ ■ ■ ■ 4 ■ ■ ■ ■ 14 ■ ■ ■ ■ 5 ■ ■ ■ ■ 15 ■ ■ ■ ■ 6 ■ ■ ■ ■ 16 ■ ■ ■ ■ 7 ■ ■ ■ ■ 17 ■ ■ ■ ■ 8 ■ ■ ■ ■ 18 ■ ■ ■ ■ 9 ■ ■ ■ ■ 19 ■ ■ ■ ■ 10 ■ ■ ■ ■ 20 ■ ■ ■ ■ Make It Easy - Take CE Exams Online Y ou must have a credit card to pur- chase test online. We accept Visa, MasterCard and American Express. Your credit card will only be charged once you pass the test and then your credits will be automati- cally recorded to your account. Log on to your account on the AST homepage to take advantage of this benefit. PJACT: TreatingArticular CartilageDefects