Question

In an adult, growth and cell division stops in
A. Bone cells
B. Nerve cells
C. Bone marrow
D. Both A and B

Answer 1

Most tissues of the body grow by mounting their cell number, but this growth is greatly regulated to keep a balance between different tissues. In adults, most cell division is engaged in tissue revitalization rather than growth, many types of cells undergoing unremitting replacement. Skin cells, for example, are continually being sloughed off and replaced.

Complete answer:
Bone tissues are incessantly remodeled through the concerted actions of bone cells. These comprise bone resorption by osteoclasts and bone configuration by osteoblasts. Osteocytes act as mechanosensors and orchestrators of the bone modifying process. This process is under the power of local and systemic aspects in the adult human. In addition, in adult human beings, growth and cell division stop in the bone cells.

In adult organisms, When the nerve cell extensions are severed, they are faced with a forest to prevent signs. As long as these signs are present, the cell extensions can cultivate no further. This also means that once contact with partner cells has been wrecked off, it cannot be re-founded.
Bone marrow is the soft tissue inside some of your bones, like your hip and thigh bones. It contains stem cells. Growth is not visible in the bone marrow.

Hence, the correct answer is option (D).

Note: Bone is a mineralized connective tissue that shows four types of cells: bone lining cells, osteocytes osteoblasts, and osteoclasts. Bone exerts significant functions in the body, such as locomotion, sustenance, and defense of soft tissues, calcium and phosphate storage, and harboring of bone marrow. Bone is a highly dynamic organ that is constantly resorbed by osteoclasts and neoformed by osteoblasts. Nerve cells correspond with each other as well as with other cells by electric signals (nerve impulses), which in turn allow effector organs to react to the appropriate stimuli.