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What is the second zone of the epiphyseal plate?

A. Zone of Proliferation
B. Zone of Hypertrophy
C. Zone of Maturation
D. Zone of Calcification

Answer :

Final answer:

The second zone of the epiphyseal plate is known as the proliferative zone, where new chondrocytes are made through mitosis, aiding in the longitudinal growth of the bone. Hence the correct option would be option a.

Explanation:

The second zone of the epiphyseal plate is the proliferative zone. This is where chondrocytes undergo mitosis and produce new cells that contribute to the longitudinal growth of the bone. The proliferative zone lies between the reserve zone, which is the first zone, and the zone of maturation and hypertrophy, which is where the chondrocytes mature and enlarge. The correct sequence of zones in the epiphyseal plate, starting with the reserve zone and moving toward the diaphysis, is reserve zone, proliferative zone, zone of maturation and hypertrophy, and finally, zone of calcification.

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