Question

Chondroblasts ________. Chondroblasts ________. are mature cartilage cells located in spaces called lacunae never lose their ability to divide remain in compact bone even after the epiphyseal plate closes within the cartilage divide and secrete new matrix

Answer 1

Chondroblasts are essential for bone development, dividing and secreting new matrix within cartilage and becoming chondrocytes, mature cells occupying lacunae.

Step-by-step explanation:

Chondroblasts are the cells that divide and secrete new matrix within the cartilage. They are critical in the process of endochondral ossification, which is the development of bone from a cartilage template. Important features of chondroblasts include their role in the growth and elongation of bones, particularly the long bones. As they secrete new matrix, the chondroblasts become chondrocytes, which are mature cartilage cells that are located in spaces within the cartilage matrix called lacunae. These processes lead to the formation of long bones and involve the transformation of the perichondrium into the periosteum and the development of the primary and secondary ossification centers.

Answer 2

within the cartilage divide and secrete new matrix

Step-by-step explanation:

Chondroblasts also called as perichondrial cells form chondrocytes which are the cells of cartilage. They also secrete the cartilage matrix which forms the cartilage. This matrix consists of collagen, fibers, proteoglycans, hyaluronic acid, water and glycoproteins.

They divide within the formed cartilage too to secrete new matrix. They are called chondrocytes when they become a part of cartilage matrix. Here they grow the cartilage matrix by secreting more extracellular matrix rather than dividing. Once the cartilage formation is completed it is composed 10-20% of collagen fibers, 65-80% of water and rest is made by proteoglycan-hyaluronic acid aggregates.