connective tissue class 9 Biology in Urdu / in Hindi | Lec # 29 | cells and tissues | chapter # 4 - video Dailymotion

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Transcript

00:00Assalam-o-Alaikum, today our topic of discussion is connective tissue.

00:07Suppose we want to make a building, for this we mainly need bricks and to connect the bricks

00:22we use cement, as you can see here, we have put cement in the middle of the bricks, what

00:29is the function of cement, it keeps the bricks together, it does not allow the bricks to fall.

00:37In this way, if we want to build a wall without cement, just by placing the bricks on top of

00:47the bricks, we will not be able to do it, the walls will fall, because there is no material

00:56to connect the bricks together.

00:59In this way, our body also has a cement material, which keeps the different parts of our body

01:08together.

01:09For example, our body has a total of 206 bones, and this is our skeletal, so these bones are

01:25connected to each other, suppose this is a separate bone, and this is a bone on top,

01:32and these are connected to each other in the middle, from here these two bones are connected

01:38to each other.

01:39Who is the one who connects these two bones?

01:42Connective tissue.

01:43So, connective tissue in our body has a cement material that keeps the different body parts

01:50together.

01:52So, there is a connective tissue in the middle of these two bones, there is a connective tissue

01:59in the middle of these two bones, there is a connective tissue in the middle of these

02:04two bones, with the help of which these two bones are connected to each other.

02:09In this way, the total 206 bones of our body are connected to each other through this connective

02:17tissue.

02:19So, the connective tissue that connects the two bones together is called ligaments.

02:27Ligaments are a type of connective tissue that connects the two bones together.

02:34Just like our bones are connected to each other, in the same way, our muscles are also

02:41attached to the bones.

02:43So, the tissue that attaches the muscle to the bone is also a connective tissue and it

02:50is called tendon.

02:52This is a type of connective tissue.

02:57This is our bone and this is the muscle.

03:00And the white color that is visible to these two is a tendon, which is a type of connective

03:06tissue.

03:08So, just like the bones are connected to each other and the muscles are connected to the

03:14bones, in the same way, our skin is also connected to the muscles.

03:21The skin of our entire body is also connected to the muscles through connective tissue.

03:30So, connective tissue connects the bones to the bones, the bones to the muscles, and the

03:36muscles to the skin.

03:41In this way, the bones are a type of connective tissue.

03:46The bones are a type of connective tissue.

03:49In this way, blood circulates in our entire body.

03:54So, blood is also a type of connective tissue.

03:58Blood has white blood cells, red blood cells, platelets, and these are all inside a fluid

04:13called plasma.

04:17So, what does blood do?

04:19It delivers oxygen and nutrients to the entire body, which is a type of connective tissue.

04:26In this way, there is another type of connective tissue called adipose tissue.

04:32This is a type of fat that stores energy in the form of fat.

04:41So, this adipose tissue is also present in our kidneys.

04:46In addition to this, it is also present in our abdominal region.

04:55Fat is stored in the abdominal region of most people.

05:00In this way, there is adipose tissue under the skin of our entire body, which is a type

05:07of fat.

05:08And this is also a type of connective tissue.

05:14In this way, there is a type of adipose tissue called cartilage.

05:19In Urdu, it is called soft bone.

05:23And this cartilage joins the two bones together.

05:27The connective tissues between the two bones are called asilmo cartilage, which are soft

05:34and flexible.

05:35In this way, there are connective tissues in our nose, in the air, and the airways of

05:42the trachea are also made up of asilmo cartilage.

05:47And this is a type of connective tissue.

05:53Now let's look at the structure of connective tissue.

05:56Connective tissue has cells scattered throughout an extracellular matrix.

06:02For example, this is a connective tissue.

06:06So we all know how tissues are made when many cells meet each other to form tissues.

06:15So the cells in the connective tissue are far away from each other.

06:23And they are present in the extracellular matrix.

06:33Extracellular means outside the cell and matrix means fluid.

06:37That is, the fluid is present on the outside of the cells of the connective tissue.

06:44Here the fluid is present.

06:46This is called a matrix.

06:48And these are of jelly type.

06:51So in this fluid, the cells of the connective tissue are scattered.

06:57Yesterday we studied epithelial tissue.

07:00And the cells of epithelial tissue are tightly packed with each other.

07:07And there is no space between them.

07:12While the cells of the connective tissue are present in a jelly-like fluid.

07:17This is called a matrix.

07:19And they are scattered in this matrix.

07:25And there is space between them.

07:31Now let's look at the function of connective tissue.

07:34Our bones give us support.

07:38Our skeletal muscles give us support.

07:40The skeletal system supports the body.

07:44In addition, the different parts of the body are connected to each other.

07:50The bones are connected to the bones.

07:52The bones are connected to the muscles.

07:54The muscles are connected to the skin.

07:56This is how the transportation works.

07:58Our blood is also a type of connective tissue.

08:02The blood transports oxygen and nutrients to the entire body.

connective tissue class 9 Biology in Urdu / in Hindi | Lec # 29 | cells and tissues | chapter # 4

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