What muscle group would you strengthen to provide dynamic stability for the loss of stability from a torn anterior cruciate ligament (ACL)?
a. Quadriceps muscles
b. Adductor muscles
c. Hamstring muscles
d. Gluteal muscles
ANS: C
The ACL limits anterior translation of the tibia on the femur. If this ligament is compromised, another force will need to help provide the same function. As a dynamic stabilizer, the hamstring would be best suited for this purpose. As the hamstrings contract, they provide a slight posterior translation of the tibia.
You might also like to view...
Which organ system or body area is documented in the words "No cervical spine tenderness . . . no thoracic spine tenderness and no lumbar spine tenderness"?
a. Hematologic/Lymphatic/Immunologic b. Abdomen c. Extremities d. Musculoskeletal
You need to prepare 240 gm of a zinc oxide 0.375% ointment. You will mix together zinc oxide 5% and an ointment base. How much zinc oxide 5% ointment will be needed?
A) 18 gm B) 50 gm C) 210 gm D) 222 gm
Autopsies must be performed in cases in which the death is suspicious or due to homicide. Which of the following is true regarding current trends in performing autopsies?
A. Technological advances have made postmortem diagnoses more essential. B. A reason for fewer autopsies is the unavailability of pathologists in small hospitals. C. More autopsies are performed today because insurance companies cover them. D. When an autopsy is mandated by law, family members must give consent. E. Health care costs have climbed, so fewer autopsies are being done.
Which color is the oxygen tank?
a. Blue b. Green c. Black d. Red