Question

explain animal tissue

Answer 1

In animal organs are made up of four basic types of tissues epithelial tissue, connective tissue, muscle tissue and nerve tissue. These tissues have distinctive features and specific functions which combine to form functioning organs.
Animal tissues are grouped into four basic types: connective, muscle, nervous, and epithelial.

Answer 2

First of all, what is a tissue?

Tissue is a group of cells which are similar in structure and permform a particular function together.

There are two types of tissues. One is plant tissue and another one is animal tissue.

In plant tissue, there are many types of tissues. Each tissue performs different functions and helps in different things of a plant.

Similarly, there are many types of animal tissue and different tissues perform different functions.

Can u say How we breadth, walk or jump etc?

It's because of tissues only..

Now, let's come to different types of animal tissue :-

1. Epithelial tissue -

Epithelial tissue is the protective tissue. It covers the animal body and internal organs. It keeps different organs separate. The cells of epithelial tissue are tightly packed and so form a continuous sheet.

There are different types of epithelial tissue like :-

Squamous epithelium tissue - these tissues are very thin and flat. Squamous epithelium tissue is present in the lining of mouth.

Skin is also made up of squamous epithelium tissue but in this tissue, the cells are arranged in such a manner that would prevent from wear and tear. As it's arranged in layers, it's called then stratified squamous epithelium.

Cuboidal - the cells of cuboidal epithelium are cubical and forms the lining of kidney tubules. Their main function is to provide mechanical support.

Columnar epithelium - cells of columnar epithelium are pillar like. This tissue facilitates movement across the inner lining it intestine where absorption and secretions occurs..

This tissue also have cilia. Hence, also called ciliated columnar tissue.

Now, let's come to CONNECTIVE TISSUE :-

Connective tissue are those tissues which connects different organs in the body.

There are many types of connective tissue like fluid connective tissue, loose connective tissue, fat connective tissue, dense connective tissue etc.

In fluid connective tissue, there are two types. One is blood and another one is lymph. Blood has a liquid matrix called plasma. Where RBC, WBC and platelets are present. Blood helps in transportation if gases, water materials etc.

Lymph is also like blood but White blood cells aren't present. Lymph helps in immunity.

Loose connective tissue is areolar tissue. This is found between muscles and bone. and also around nerves and blood vessels. areolar tissue helps in repairing organs and also supports them.

fat connective tissue is apidose it stores fat in our body. and cells of apidose tissue contains fat globules whichet it act as an insulator. apidose tissue is present Below skin and internal organs.

bone is a supporting connective tissue. bone forms a framework which supports the animal body. it also protects internal organs. it has hard matrix and it's a strong and non flexible tissue.

another type of supporting connective tissue is cartilage. it's not hard as bone. we can bend it, fold it etc. it's loosely packed. it helps to smoothen bone surfaces. it's present in our nose and ear.

ligament and tendons are the two types of dense connective tissue. ligament is very much flexible, elastic and have little matrix. ligaments connect bone to bone.

tendons are fibrous. they Conner bones to muscles. tendons have limited flexibility.

next is MUSCULAR TISSUE :-

muscular tissue helps in movement of our body. it contains some special proteins, which contract and relax to cause movement.

there are three types of muscular tissue. which are -

striated also known as skeletal muscles. these are mostly attached to bones and it's a voluntary muscle. it has dark bands (striations). that's why they are called striated muscles. cells of striated muscles are long, unbranched and multinucleate.

contraction and relaxation of blood vessels is because of smooth muscles. also found in iris of the eye. cells if smooth muscles are spindle shaped, unstriated and have uninucleate and are involuntary. they are also known as unstriated muscles.

heart muscles also known as cardiac muscles. they are involuntary and the heart shows rhythmic contraction and relaxation because of this muscle. cells if cardiac muscles are branched and uninucleate.

last one is NERVOUS TISSUE :-

cells of nervous tissue helps in transporting stimulus from one place to another very rapidly. they are present in brain, nerves and spinal cord. these cells are called neurons. it consists a cell body from which many thin hair like structures arise. these are called dendrites and it also have a long part called axon.

we can move our muscles whenever we want because of nerves only.

these are the types of animal tissue..

HOPE THIS HELPS..!!