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Organisation of cells animal tissues (view source)
Revision as of 01:52, 6 August 2014
, 01:52, 6 August 2014→Notes for teachers
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===Notes for teachers===
===Notes for teachers===
This is the most widespread and abundant type of tissue in the human body. Its function is primarily to support, anchor and connect various parts of the body. Although connective tissue exists in a number of forms, all types have three basic structural elements -- cells, fibres and ground substance. The cells of connective tissue are loosely spaced and embedded in an intercellular matrix . The matrix may be jelly like, fluid, dense or rigid.<br>
This is the most widespread and abundant type of tissue in the human body. Its function is primarily to support, anchor and connect various parts of the body. Although connective tissue exists in a number of forms, all types have three basic structural elements -'''cells, fibres and ground substance'''. The cells of connective tissue are loosely spaced and embedded in an intercellular matrix . The matrix may be jelly like, fluid, dense or rigid.<br>
Connective tissue is richly supplied with blood.It is also known as binding tissue since it connects or binds other tissues.<br>
Connective tissue is richly supplied with blood.It is also known as binding tissue since it connects or binds other tissues.<br>
Connective tissues are classified into three types on the basis of nature of matrix.
Connective tissues are classified into three types on the basis of nature of matrix.
*Loose Connective tissue
*'''Loose Connective tissue'''
*Dense Connective tissue
*'''Dense Connective tissue'''
*Fluid Connective tissue<br>
*'''Fluid Connective tissue'''<br>
'''Loose Connective tissue'''<br>
'''Loose Connective tissue'''<br>
The tissue in which the fibres in the matrix are loosely arranged is called loose Connective tissue.Areolar tissue,Adipose tissue and reticular tissue are included under this group.<br>
The tissue in which the fibres in the matrix are loosely arranged is called loose Connective tissue.'''Areolar tissue,Adipose tissue and reticular tissue '''are included under this group.<br>
'''Areolar tissue'''<br>
'''Areolar tissue'''<br>
Areolar connective tissue is found between the skin and muscles, around blood vessels and nerves and in the bone marrow. It fills the space inside the organs, supports internal organs and helps in repair of tissues.<br>
Areolar connective tissue is found between the skin and muscles, around blood vessels and nerves and in the bone marrow. It fills the space inside the organs, supports internal organs and helps in repair of tissues.<br>
http://aandpeasyaspanda.files.wordpress.com/2011/10/areolar1.jpg
http://aandpeasyaspanda.files.wordpress.com/2011/10/areolar1.jpg
'''Areolar tissue'''
The three different fibres of areolar connective tissue are arranged in no particular pattern but run in all directions and form a loose network in the intercellular material.
The three different fibres of areolar connective tissue are arranged in no particular pattern but run in all directions and form a loose network in the intercellular material.
*Collagen (collagenous) fibres or white fibres are predominant. They usually appear as broad pink bands.
*'''Collagen fibres or white fibres''' are predominant. They usually appear as broad pink bands.
*Yellow fibres or elastic fibres, which appear as thin, dark fibres are also present.
*'''Yellow fibres or elastic fibres''', which appear as thin, dark fibres are also present.
*Reticular fibres.<br>
*'''Reticular fibres'''.<br>
http://www.kshitij-school.com/Study-Material/Class-11/Biology/Structural-organisation-in-animals/Animal-tissues/4.jpg
http://www.kshitij-school.com/Study-Material/Class-11/Biology/Structural-organisation-in-animals/Animal-tissues/4.jpg
'''Figure showing different types of fibres and cells in areolar tissue'''
The different types of cells embedded within the areolar tissue include:<br>
The different types of cells embedded within the areolar tissue include:<br>