a.
To determine: The number of axes in the knee and the patellofemoral joint.
Introduction: The knee joint is the largest joint in the human body, which is formed by the bones, ligaments, tendons, cartilages, and other tissues.
a.
Explanation of Solution
The knee joint is uniaxial but the patellofemoral jointdoesnot haveany axes. The knee joint is formed by the articulations between the patella, tibia, and femur. The patellofemoral joint helps in the protection of the knee joint.
b.
To determine: The shape of the knee and the patellofemoral joint.
b.
Explanation of Solution
The knee joint is a synovial hinge type of joint whereas the patellofemoral joint is irregular in shape. The knee joint is not a true hinge-like elbow joint because it has rotational components.
c.
To determine: The type of motions allowed in the knee and the patellofemoral joints.
c.
Explanation of Solution
The motions allowed in the knee joint are flexion and extension. The motion allowed in the patellofemoral joint is gliding only.
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Chapter 19 Solutions
Clinical Kinesiology and Anatomy
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