A 16-year-old male was recently diagnosed with osteosarcoma. The tumor is most likely present in the _____ of long bones.
A) epiphyses
B) metaphyses
C) marrow
D) osteocytes

Question

Quizplus · Accepted Answer

Osteosarcoma is a malignant bone tumor that arises from primitive bone-forming mesenchymal cells. It occurs most commonly in the metaphyses (the wider part of a long bone) of the femur, tibia, and humerus. The epiphyses (the rounded end of a long bone) and marrow (the inner soft part of bone) are less commonly affected. Osteocytes are mature bone cells and are not involved in the development of osteosarcoma.

A 16-Year-Old Male Was Recently Diagnosed with Osteosarcoma