Table of Contents
Can bone grow through interstitial growth?
Interstitial growth allows bones to grow in length, while appositional growth allows bones to grow in diameter. Moreover, interstitial growth occurs within lacunae while appositional growth happens on the surface of pre-existing cartilage.
Why interstitial growth does not occur in bones?
why can cartilage undergo interstitial growth whereas bone cannot? In old age- resorption predominates, bone mass declines, and calcium needs tend to be high due to poorer nutritive absorption.
What is interstitial growth?
Interstitial growth is the process that adds or removes solid mass at locations inside a solid material. For this process to occur, there must be interstitial space within this material to allow atoms or molecules to bind to the underlying substrate.
What stops the growth of a bone?
Lengthening of Long Bones Long bones stop growing at around the age of 18 in females and the age of 21 in males in a process called epiphyseal plate closure. During this process, cartilage cells stop dividing and all of the cartilage is replaced by bone.
What causes interstitial growth?
In endochondral ossification, bone develops by replacing hyaline cartilage. Activity in the epiphyseal plate enables bones to grow in length (this is interstitial growth).
Where does interstitial growth occur?
Interstitial growth is the lengthening of the bone resulting from the growth of cartilage and its replacement with bone tissue. A person grows taller because of interstitial growth. This growth occurs at the epiphyseal plate and continues until the person reaches the teenage years.
Why does interstitial growth occur in long bones?
INTERSTITIAL GROWTH IN GROWING LONG BONES. Even in a tissue of such firm consistency as cartilage, it is found that its increase in size is due to the multiplication and growth of the individual cells. This form of interstitial growth also takes place in the cartilaginous forerunner of bone, but it is questionable whether it occurs after…
Why do bones continue to grow even after they stop growing?
Bone growth is under the influence of growth hormone from the anterior pituitary gland and sex hormones from the ovaries and testes. Even though bones stop growing in length in early adulthood, they can continue to increase in thickness or diameter throughout life in response to stress from increased muscle activity or to weight.
Why does cartilage increase in size over time?
Even in a tissue of such firm consistency as cartilage, it is found that its increase in size is due to the multiplication and growth of the individual cells. This form of interstitial growth also takes place in the cartilaginous forerunner of bone, but it is questionable whether it occurs after…
Where does appositional growth take place in the bone?
In order to accommodate for increases in length, bones also need to increase in thickness. This type of growth, called appositional growth, happens when osteoblasts in the periosteum deposit new bone matrix layers onto already-formed layers of the outer surface of bone. At the same time, osteoclasts on the endosteum break bone tissue down.