The acetabulum articulates with the:
Humerus
Patella
Femur
Tibia
The Correct Answer is C
Choice A reason: The humerus is the upper arm bone and articulates with the glenoid cavity of the scapula, not the acetabulum.
Choice B reason: The patella is the kneecap and articulates with the femur, not the acetabulum.
Choice C reason: The acetabulum is the deep socket in the pelvic bone that articulates with the head of the femur, forming the hip joint. This ball-and-socket configuration allows for a wide range of motion and stability.
Choice D reason: The tibia is the larger bone of the lower leg and articulates with the femur at the knee joint and the talus at the ankle. It does not connect to the acetabulum.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is True
Explanation
Choice A reason: Slow oxidative fibers are rich in mitochondria, myoglobin, and capillaries, making them highly efficient at aerobic metabolism. They contract slowly but are highly resistant to fatigue, making them ideal for prolonged activities like marathon running or maintaining posture.
Choice B reason: This is incorrect. Fast glycolytic fibers are suited for short bursts of power, not endurance. Slow oxidative fibers are specifically adapted for sustained, low-intensity activity.
Correct Answer is A
Explanation
Choice A reason: The talus is a tarsal bone in the ankle that articulates with the tibia and fibula. It is not embedded within a tendon and therefore not classified as a sesamoid bone.
Choice B reason: The radius is a long bone in the forearm and is not embedded in a tendon. It does not meet the criteria for a sesamoid bone.
Choice C reason: The femur is the longest bone in the body and is classified as a long bone. It is not a sesamoid bone.
Choice D reason: The hamate is one of the carpal bones in the wrist. It is not embedded in a tendon and is not considered a sesamoid bone.
Choice E reason: The patella is the most prominent example of a sesamoid bone. It is embedded within the quadriceps tendon and functions to protect the knee joint and enhance leverage during leg extension.
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