1. Describe the three types of functional joints. SyNATHRosesINU nent 3. Describ
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1. Describe the three types of functional joints. SyNATHRosesINU nent 3. Describe the four types of structural joints. Bonay FeSenl- Vture Bones thve piseo Tdyek da@TiaglNaas- h?Reus JOINTS-SINAerhorses-trne To no maintr-T List the seven liga ments of the knee and how each supports the joint 4. s. List the muscles of the rotator cuff and describe how the cuff can be injured. F. Application and Analysis 1. Describe how the articulating bones of the elbow prevent hyperextension of this joint. 2. Which joint is unique to the hand, and how does this joint move the hand? 3. Which structural feature enables diarthrotic joints to have free movement? The shoulder and hip joints are ball-and-socket joints, but the hip joint is much stronger than the shoulder joint. Describe two anatomical structures that strengthen the hip joint. 4. G. Clinical Challenge 1. What is the cause of bone fusion in joints damaged by rheumatoid arthriti Describe how the tibial collateral ligament could be damaged if the knee is impacted on the lateral surface. 2. An elderly woman falls and fractures her hip. What anatomical structures are most likely to be injured with this type of accident? 3. 218Explanation / Answer
F. 1. Articulating bones: proximally lower end of the humerus bine. Distally- head of the radius and upper end of ulna. Elbow joint forms the main part of the cubital articulation.
They help to not allow the tendons to stretch backwards.with the bones there you can only bend the elbow one way.
2. The saddle joint permits movement of thumb to palm or pad of other fingers. This allows you to grab and hold objects in between thumb and palm
3. A small membrane- lined cavity allows more ROM, making diathroses a freely movable synovial joint.
4. The hip joint less mobile than the shoulder, but is an overall stronger and more stable joint. The added stability stability of the hip joint is necessary to bear the weight of the body resting on legs while performing actions such as standing, walking, and running. In the hip joint the rounded, almost spherical head of the femur fits tightly into the acetabulum, a deep socket in the os coxa (hip bone).
The capsule which encircle the joint anf femoral neck is very strong. Its stronger aspects are the anterior and superior aspects, rein forced primary by two strongest ligaments, the iliofemoral and ischiofemoral ligaments.
G.1. Rheumatoid arthritis involves an immune response destroying the synovium and joint. Once the protective lubricants and cartilage are gone, bone to bone healing takes place( joint fusion).
2. Injury was produced due to external tibial rotation on the femur with the knee flexed.
3. Fracture in proximal femur.
Ball and socket( spheroid)
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