Question

Namr the four types of animal tissues.​

Answer 1

Tissue is defined as a group of cells that have a common shape & structure. They work together to achieve a common function.

$\begin{gathered} {\underline{\boxed{ \rm {\red{There \: \: are \: \: 4 \: \: types \: \: of \: \: tissues \: \: in \: \: animals }}}}}\end{gathered}$

${\boxed{ \LARGE{ \blue{ \bf{ \underline{ 1) \: Nervous \: \: tissue}}}}}}$

• Nerves in our body are like cables.

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• They transmit information from body parts to brain.

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• Nervous tissues transmit orders from brain to body parts.

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• Nervous and muscular tissues together control body movement in animals

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${\boxed{ \LARGE{ \orange{ \bf{ \underline{ 2) \: Muscular \: \: tissue}}}}}}$

• Muscular tissues is composed of elongated cells called muscle fibre.

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• Muscular tissue allows movement in body by contraction and relaxation.

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$\begin{gathered} {\underline{\boxed{ \rm {\green{There \: \: types \: \: of \: \: Muscular \: \: tissues}}}}}\end{gathered}$

$\large\boxed{\sf Straited \: \: : \: -}$

• Present in limbs , neck , face and etc.

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• Shape :- Long and Cylindrical.

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• Controls voluntary actions.

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• They are multinucleate.

$\large\boxed{\sf Smooth \: \: : \: -}$

• Present in the wall of stomach , intestine and etc.

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• Shape :- Long and spindle - shaped.

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• Controls involuntary actions.

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• They are Uninucleate.

$\large\boxed{\sf Cardiac \: \: : \: -}$

• Present in the wall of heart.

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• Shape :- Short cylindrical with branched ends.

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• Controls involuntary actions

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• Central nuclei.

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${\boxed{ \LARGE{ \purple{ \bf{ \underline{ 3) \: Connective \: \: tissue}}}}}}$

Connective tissue bind or connects various tissues and organs in the body and provide

rigidity , support or protection.

$\large\begin{gathered} {\underline{\boxed{ \rm {\red{There \: \: are \: \: mainly \: \: 6 \: \: types}}}}}\end{gathered}$

$\large\boxed{\sf Aerolar \: \: : \: -}$

• It is found below the skin in kidney , blood vessels and etc.

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• It binds various tissues together in an organ

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• It helps in repair of body tissue after injury.

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• Protect against infection by engulfing of origin substance.

$\large\boxed{\sf Adipose \: \: : \: -}$

• It is present below the skin below interval organs and etc .

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• It Stores fat.

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• It provides shape to the body.

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• Acts as heat insular , protects in serve winters ( Polar animals ).

$\large\boxed{\sf Tendon \: \: : \: -}$

• White fibrous connective tissue.

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• Connects muscles to bones.

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• Limited flexibility.

☛ Ligaments

• Yellow fibrous connective tissue.

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• Connects bones to bones.

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• Highly elastic.

☛ Cartilage

• Cartilages are elastic and very less harder than bone

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• Composed of proteins and sugars.

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• Present in nose , ear & larynx.

$\large\boxed{\sf Bone \: \: : \: -}$

• Non - Flexible .

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• Made up of calcium and phosphorus compounds.

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• They forms the frame work that support body.

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${\boxed{ \LARGE{ \pink{ \bf{ \underline{ 4) \: Epithelial \: \: tissue}}}}}}$

• They are known as protective animal tissue covering.

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• Forms continuous sheet on both external and internal surface of body and body organs.

$\large\begin{gathered} {\underline{\boxed{ \rm {\red{There \: \: are \: \: mainly \: \: 4 \: \: types}}}}}\end{gathered}$

$\large\boxed{\sf Squamous \: \: : \: -}$

• Made up of thin - flat , disc like polygon cells.

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• Nucleus is rounded and centrally located.

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• Protects underlying parts of body from mechanical injury and prevents entry of germs

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• Present in lining of nose , blood vessels , surface of skin , Oesophagus and etc.

$\large\boxed{\sf Cuboidal \: \: : \: -}$

• Cube like cells of almost equal height.

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• Present in kidneys , salivary glands and etc.

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• Provide mechanical support to organs where it is present.

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• Secrets digestive juices ( Digestive Enzymes ).

$\large\boxed{\sf Columnar \: \: : \: -}$

• Consist of tall , cylindrical and pillar like cells.

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• Present in stomach , intestine , larynx and etc.

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• They have thread on its surface which helps in absorption.

$\large\boxed{\sf Glandular\: \: : \: -}$

• They are known as modified columnar.

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• They are large cells that present in the tear glands, sweat glands etc.

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• Modified to secret sweat , milk , oil , hormones and etc.

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• Their main function is secretion.

Answer 2

Answer:

The tissues of multicellular, cmplex animals are four primary types : epithelial, connective, muscle, and nervous. Recll that tissues are groups of similar cells group of similar cells carrying our related functions.