Question

explain bone, its feature and fuction in detail...?​

Answer 1

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$\large{\underline{\underline{\mathbf{BONE:-}}}}$

Bone provide shape of our body and provide support to the BODY.

⚫ It is strong and non- flexible tissue. it's matrix is dense and Mineralised.

Due to decomposition of minerals it becomes hard.

⚫ Bones have a hard and Non-pilable ground substance rich Ca-salts and Collagen fibre.

⚫Outermost covering of bone is periosteum composed of White fibrous connective tissue.

⚫ Bone producing cell is called OSTEOBLAST.

⚫ Bone destroying cell are called

OSTEOCLAST.

⚫process of bone formation is called

OSSIFICATION.

⚫ outermost covering of bone is Periosteum composed of white fibrous connective tissue.

✡$\bold{Study\: of\: bones \: is \: called\: osteology. }$

$\large{\underline{\underline{\mathbf{Features\: of\: bone-}}}}$

✒$\rm{\underline{It\: is\: highly\: vascular}}$

✒$\rm{\underline{ it\: is\: mineralised}}$

✒$\rm{\underline{it\: is\: hard\: and\: rigid}}$

✒$\rm{\underline{it\: has\: a\: canalicular\: system}}$

✒$\rm{\underline{it\: has\: a\: Regenerating\: capacity}}$

$\large{\underline{\underline{\mathbf{Function\: of\: Bone-}}}}$

✒ It is the main tissue that provide structural framework to the body.

✒ Bone support and protect softer tissue and organs.

✒ Limb bones, such as the long bones of leg, serve weight wearing function.

✒ They also interact with skeletal muscle attached to them, to bring about movement.

✒ The bone marrow in some bones in the site of production of blood cell.

$\large{\underline{\underline{\mathbf{Matrix-}}}}$

$\bold{it\:has\:two\:parts.}$

★ Inorganic -> 65-68%

★ Organic -> 32-35%

✡NOTE : -

Bone have three regions.

1. Epiphysis

2. Diaphysis

3. Metaphysis

Answer 2

$\huge\mathbb\pink{HEYA!}$

Bone -

It is the hardest part of body of human , animals and others and tjese bones are covered with muscles

Features of Bone -

Based on Shape -

There are four categories of bone, based on their shape:

long, short, flat, and irregular

Long bones are longer than they are wide. Most of the bones of the upper and lower limbs are long bones. Short bones are approximately as wide as they are long; examples are the bones of the wrist and ankle. Flat bones have a relatively thin, flattened shape.

__________________________

Structure of a bone

A long bone serves as a useful model for illustrating the parts of a typical bone . Each long bone consists of a central ends, each called an epiphysis. A thin layer of particular cartilage covers the ends of the epiphyses where the bone articulates (joins) with other bones. A long bone that is still growing has an epiphyseal plate, or growth plate, composed of cartilage, between each epiphysis andthe diaphysis

. The epiphyseal plate is where the bone grows in length. When bone growth stops, the cartilage of each epiphyseal plate is replaced by bone and becomes an epiphysealline

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