A team of doctors is working to develop a new design for a knee replacement implant. The diagram below shows what a healthy knee looks like.During the knee replacement surgery, cartilage and bone that are causing the patient pain will be replaced with the new knee replacement implant. The knee replacement implant will replace both the top and the bottom parts of the knee joint. The average age of a patient needing knee replacement surgery is about 70 years.Which two criteria should the doctors be considering as they develop their knee replacement implant design? A. The design should break down quickly in the body, and it should lock into place to support the body. B. The design should be strong enough to support the patient's weight, and it should be able to bend. C. The design should chemically react with the surrounding leg bone, and it should be able to bend. D. The design needs to be able to grow as the body grows, and it should lock into place to support the body.

People who suffer from pain around their hip joint may need to have hip replacement surgery. An engineer created the two hip replacement designs that are shown below.Design A features a spherical joint and design B features a cubic joint. Which hip replacement design is best and why? A. Design B is best because the cubic joint can lock into place and hold more weight. B. Design A is best because the spherical joint is able to provide the patient with more movement. C. Design A is best because the spherical joint requires less material and is cheaper to manufacture. D. Design B is best because the cubic joint will be more durable over a longer period of time.

The bottom of which bone is removed during knee replacement surgery?Multiple choice question.TibiaFibulaFemurPatella

Multiple Choice QuestionWhat is the role of the cruciate ligaments of the knee?Multiple choice question.To prevent displacement of the articulating surfaces of the femur and tibia.To anchor the patella in place.To provide shock absorption within the weight-bearing parts of the knee joint.To produce the synovial fluid that nourishes and lubricates structures within the knee joint.

A person with extreme hearing loss may choose to use a cochlear implant to regain their hearing. Below is an image of a person wearing a cochlear implant. An engineer wants to design a new cochlear implant, but only the four materials shown in table A are available to him. Table A shows the frequency of sound waves that each material can pick up. Table B provides frequency ranges and examples for three different types of sound.Of the four materials that are available to the engineer, which material should he use for the implant design? A. material X B. material Z C. material W D. material Y

Which joint is represented by the articulation of the tibia, fibula and talus?Multiple choice question.KneeWristShoulderAnkle