rus 1201 25. Running Knee Injury (Articulation of the Knee Joint) Ellen is a rec

Question

rus 1201 25. Running Knee Injury (Articulation of the Knee Joint) Ellen is a recreational runner. She averages 20 to 30 miles per week an running for 20 years. She participates in occasional maratho ed to run for cardiovascular, pulmonary, and muscular condi months, Ellen noticed a clicking sound in her right knee. She ignored the cli and continued to run since she had no pain, loss of motion, or strength ns but is mostly motivat ) ne day as she was getting ready to run after a warm up stretch, Ellen felt a pop in her right knee. She could not bear weight on it, felt a sharp pain, and was unable to straighten her leg. She crawled into her house. Her husband drove her to the office of their friend David, an orthopedic surgeon. After examining Ellen, I a torn anterior cruciate ligament by doing the drawer test. He suspected a torn art lar cartilage or meniscus. Ellen was sent to a radiologist for an David ruled out icu MRI of the knee. This test confirmed David's suspicions and an arthroscopic procedure was performed Several pieces of torn cartilage, "joint mice," were removed from Ellen's knee. David was pleased to report that all of the ligaments were intact. After a recovery of four weeks, Ellen resumed her training regime. 1. Describe the knee joint and the movements associated with this type of joint. 2. What bones make up the knee joint (Figure 25.1)? 3. Name and give the function of the cartilages found in the knee (Figure 25.1)? designate the part of the upper limb between the shoulder and elbow only. The humerus (hu'mer-us) is the only bone of the

Explanation / Answer

1. Knee joint , also called the tibiofemoral joint is a type of synovial hinge joint , which is formed between three bones - tibia , patella and the femur .

Movements - flexion , extension , external rotation ,internal rotation .

2.Bones that make up the knee joint are - tibia , femur and the patella .

3. The cartilage present at the knee joint is the articular cartilage . This is a type of articular cartilage . Function of the cartilage is the reduction of the friction between the two bones.

4.Other non bone components of the knee joint are -

Synovial fluid is present between the two bones bo a cavity called synovial cavity . They help in reduction of friction .

5. The pop sound is dur to the damage to the mensicus . These are common in joggers and gymnasts .

Another reason may be damage of ligaments that may lead to improper locking of knee . This causes the difficulty in hearing the weight .

Related Questions

Navigate

• Browse (All)
• Browse R
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.