How can you remember the difference between abduction and adduction? How can you remember what flexion is? What two f words do you use? Are flexion and flexing the same thing? Explain. 4. How does extension relate to flexion?

The ankle joint ________. is also called the subtalar joint allows for gliding movements that produce inversion/eversion of the foot is a uniaxial hinge joint is supported by the tibial collateral ligament on the lateral side

Watch this video (http://openstaxcollege.org/l/flexext) to learn more about the flexion and extension of the knee, as the femur both rolls and glides on the tibia to maintain stable contact between the bones in all knee positions. The patella glides along a groove on the anterior side of the distal femur. The collateral ligaments on the sides of the knee become tight in the fully extended position to help stabilize the knee. The posterior cruciate ligament supports the knee when flexed and the anterior cruciate ligament becomes tight when the knee comes into full extension to resist hyperextension. What are the ligaments that support the knee joint?

The elbow is an example of which type of joint? hinge pivot saddle gliding

The large muscle group that attaches the leg to the pelvic girdle and produces extension of the hip joint is the ________ group. gluteal obturator adductor abductor

Watch this video (http://openstaxcollege.org/l/anatomical) to learn about anatomical motions. What motions involve increasing or decreasing the angle of the foot at the ankle?

Which of the following statements is correct about what happens during flexion? The angle between bones is increased. The angle between bones is decreased. The bone moves away from the body. The bone moves toward the center of the body.

Watch this video (http://openstaxcollege.org/l/TMJ) to learn about TMJ. Opening of the mouth requires the combination of two motions at the temporomandibular joint, an anterior gliding motion of the articular disc and mandible and the downward hinging of the mandible. What is the initial movement of the mandible during opening and how much mouth opening does this produce?

Watch this video (http://openstaxcollege.org/l/fractures) to see how fractures of the distal radius bone can affect the wrist joint. Explain the problems that may occur if a fracture of the distal radius involves the joint surface of the radiocarpal joint of the wrist.

Watch this animation (http://openstaxcollege.org/l/hipreplace) to observe hip replacement surgery (total hip arthroplasty), which can be used to alleviate the pain and loss of joint mobility associated with osteoarthritis of the hip joint. What is the most common cause of hip disability?