7) Which of the following statements best describes interstitial growth? A) Fibr

Question

7) Which of the following statements best describes interstitial growth? A) Fibroblasts give rise to chondrocytes that differentiate and form cartilage. B) Growth occurs in the lining of the long bones. C) Ch ondrocytes in the lacunae divide and secrete matrix, allowing the cartilage to gro within. D) Unspecialized cells from mesenchyme develop into chondrocytes, which divide an cartilage 18) In the epiphyseal plate, cartilage grows A) in a circular fashion B) by pushing the epiphysis away from the diaphysis C) by pulling the diaphysis toward the epiphysis D) from the edges inward

Explanation / Answer

7Ans: C (Chondrocytes in the lacune devide and secret matrix, Allowing the cartilage to grow within )

**The cartilage model will grow in length by continuous cell division of chondrocytes, which is accompanied by further secretion of extracellular matrix. This is called interstitial growth.

8Ans: B

Bypushing the epiphysis away from the diaphysis

initial bone development from cartilage in utero and infants and thelongitudinal growth of long bones in the epiphyseal plate. The plate's chondrocytes are under constant division by mitosis.

The plate is found in children and adolescents; in adults, who have stopped growing, the plate is replaced by an epiphyseal line. This replacement is known as epiphyseal closure.

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