What is the longest skeletal bone present in the human body___________?
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Answer: C. Femur
Explanation
The femur is structurally recognized as the longest and strongest skeletal bone in the human body. It extends anatomically from the hip joint down to the knee joint in the upper leg. Its immense length and robust architecture allow it to withstand significant mechanical loads during locomotion. The adult human skeletal system consists of two hundred six distinct bones providing support and protection. Long bones feature a central shaft known as the diaphysis and two expanded ends called epiphyses. The femur contains dense cortical bone on the outside and spongy trabecular bone inside for shock absorption.
The ulna is a forearm bone located on the medial side opposite to the radius. The tibia is the main shinbone supporting lower leg weight, but it is shorter than the femur. The humerus is the single long bone located in the upper arm region of the body.
- Subject
- Everyday Science
- Category
- Everyday Science
- Topic
- —
- Difficulty
- medium
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