403. When the femur is fractured, the broken distal end often turns posteriorly to enter the popliteal fossa due to muscle traction. Because of its position deepest in the fossa, which structure is most vulnerable to laceration?

A. Tibial nerve
B. Popliteal vein
C. Common fibular nerve
D. Popliteal artery
E. Lesser saphenous vein

404. Which of the following is/are risk factors for gout? (Possibility of more than one answer)

A. Alcohol
B. Dairy product consumption
C. Diuretic use
D. Seafood consumption

405. Which one of the following has been shown to be strongly associated with Dupuytren's disease?

A. Epilepsy
B. Diabetes
C. Trauma
D. Anticonvulsant medication use

406. Which one of the following statements about first through fourth metatarsal fractures is correct?

A. Nondisplaced fractures do not require casting
B. Lisfranc injuries can always be detected on standard x-rays
C. The most common mechanism in athletes is a crush injury
D. Injuries to the Lisfranc complex can cause significant disability if not treated appropriately

407. Your immune system helps protect you against viruses and bacteria that can cause sickness. Which cells are parts of the immune system?

A. White blood cells
B. Red blood cells
C. Nerve blood cells

408. Rings of matrix surrounding the Haversian canal are called?

A. Bowman's Capsule
B. Medullary vessels
C. Lamellae
D. Venous sinus