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This type of tissue is the most abundant, widespread, and varied of all tissue types in the body. It also has the widest variety of functions.  CONNECTIVE TISSUE
Connective tissue, such as “ loose ” or  aereolar tissue , can function to bind structures together, hold organs in place or separate structures.
Connective tissue such as  adipose  ( fat )  tissue  serves as a   storage site for lipids  ( fats & oils ), surrounds and protects internal organs, and provides an insulating layer to aid in body temperature regulation.
Other connective tissue such as  blood  helps to “connect” (in a communication sense) one part of the body to another, transport substances, fight infection, or aid in tissue repair.
For our purposes, the connective tissues we examine all function either to  provide support ,  physically connect or anchor one structure to another , or  serve as a framework .  These tissues will be: Tendon Ligament
3 Types of Cartilage Tissue Elastic Cartilage Fibrous Cartilage or “Fibrocartilage” Hyaline Cartilage
2 Types of Bone Tissue Cancellous or  Spongy  Bone Compact  Bone or Cortical bone
Spongy Bone Compact Bone
No matter what the tissue, one characteristic common to all connective tissue is that it is composed mostly of an intercellular material called “ matrix .” matrix matrix matrix matrix matrix
Tissue cells are then contained in this intercellular matrix but are "far" apart, relatively speaking.  cells matrix matrix matrix matrix matrix
Examples of cells found in various connective tissues. Cartilage cells or “Chondrocytes” Bone Cells or “Osteocytes” Tendon cells or “Fibroblasts”
It is actually the composition of this  matrix  which gives each type of connective tissue its individual characteristics. Matrix itself is actually composed of two different things. These are  protein fibres  and  ground substance .   ground substance protein fibres
Ground Substance is described as an amorphous (shapeless or formless), extracellular material which serves as a diffusion medium in the spaces around the cells and fibers, and it plays a major role in determining the physical nature of a connective tissue.   ground substance
Ground substance can range in consistency from  liquid , as in blood, where the matrix is “plasma” and the ground substance is actually dilute saltwater,
to “gel-like”, as in cartilage where the matrix can be collagen or elastic fibers in a ground substance called chondroitin sulfate,
or to solid, as in bone where the matrix is collagen fibers in a mineral called  hydroxyapatite , which is a form of calcium phosphate, Ca 3 (PO 4 ) 2
The fibres consist of long protein molecules that are embedded in the ground substance.  They are produced by the tissue cells which are themselves contained within the matrix. There are two types of fibres contained in the connective tissue we will study –  collagen fibers  made from  collagen or “tropocollagen” molecules  and  elastic fibers  made from  elastin molecules .
Collagen molecules form protein fibers which have a white color to the unaided eye, so we call them "white fibers." They are the major  structural protein  in the human body. In tissue the collagen fibers come together to form large bundles. Collagen fibers are only slightly flexible; they have great  tensile strength , and are not very elastic.
The collagen molecule is a triple helix formed by three extended protein chains that wrap around one another. Many rod-like collagen molecules are cross-linked together in the extracellular space to form collagen fibrils (top) that have the tensile strength of steel.
Elastin molecules form protein fibers which have a yellowish or ivory color to the unaided eye, so we call them "yellow fibers." In tissue the elastin molecules often form large "web-like" structures. Elastic fibers are highly elastic and more flexible than collagen. However, they have much less tensile strength.
Elastin polypeptide chains are cross-linked together to form rubberlike, elastic fibers. Each elastin molecule uncoils into a more extended conformation when the fiber is stretched and will recoil spontaneously as soon as the stretching  force is relaxed.

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Connective tissue

  • 1. This type of tissue is the most abundant, widespread, and varied of all tissue types in the body. It also has the widest variety of functions. CONNECTIVE TISSUE
  • 2. Connective tissue, such as “ loose ” or aereolar tissue , can function to bind structures together, hold organs in place or separate structures.
  • 3. Connective tissue such as adipose ( fat ) tissue serves as a storage site for lipids ( fats & oils ), surrounds and protects internal organs, and provides an insulating layer to aid in body temperature regulation.
  • 4. Other connective tissue such as blood helps to “connect” (in a communication sense) one part of the body to another, transport substances, fight infection, or aid in tissue repair.
  • 5. For our purposes, the connective tissues we examine all function either to provide support , physically connect or anchor one structure to another , or serve as a framework . These tissues will be: Tendon Ligament
  • 6. 3 Types of Cartilage Tissue Elastic Cartilage Fibrous Cartilage or “Fibrocartilage” Hyaline Cartilage
  • 7. 2 Types of Bone Tissue Cancellous or Spongy Bone Compact Bone or Cortical bone
  • 9. No matter what the tissue, one characteristic common to all connective tissue is that it is composed mostly of an intercellular material called “ matrix .” matrix matrix matrix matrix matrix
  • 10. Tissue cells are then contained in this intercellular matrix but are "far" apart, relatively speaking. cells matrix matrix matrix matrix matrix
  • 11. Examples of cells found in various connective tissues. Cartilage cells or “Chondrocytes” Bone Cells or “Osteocytes” Tendon cells or “Fibroblasts”
  • 12. It is actually the composition of this matrix which gives each type of connective tissue its individual characteristics. Matrix itself is actually composed of two different things. These are protein fibres and ground substance . ground substance protein fibres
  • 13. Ground Substance is described as an amorphous (shapeless or formless), extracellular material which serves as a diffusion medium in the spaces around the cells and fibers, and it plays a major role in determining the physical nature of a connective tissue. ground substance
  • 14. Ground substance can range in consistency from liquid , as in blood, where the matrix is “plasma” and the ground substance is actually dilute saltwater,
  • 15. to “gel-like”, as in cartilage where the matrix can be collagen or elastic fibers in a ground substance called chondroitin sulfate,
  • 16. or to solid, as in bone where the matrix is collagen fibers in a mineral called hydroxyapatite , which is a form of calcium phosphate, Ca 3 (PO 4 ) 2
  • 17. The fibres consist of long protein molecules that are embedded in the ground substance. They are produced by the tissue cells which are themselves contained within the matrix. There are two types of fibres contained in the connective tissue we will study – collagen fibers made from collagen or “tropocollagen” molecules and elastic fibers made from elastin molecules .
  • 18. Collagen molecules form protein fibers which have a white color to the unaided eye, so we call them "white fibers." They are the major structural protein in the human body. In tissue the collagen fibers come together to form large bundles. Collagen fibers are only slightly flexible; they have great tensile strength , and are not very elastic.
  • 19. The collagen molecule is a triple helix formed by three extended protein chains that wrap around one another. Many rod-like collagen molecules are cross-linked together in the extracellular space to form collagen fibrils (top) that have the tensile strength of steel.
  • 20. Elastin molecules form protein fibers which have a yellowish or ivory color to the unaided eye, so we call them "yellow fibers." In tissue the elastin molecules often form large "web-like" structures. Elastic fibers are highly elastic and more flexible than collagen. However, they have much less tensile strength.
  • 21. Elastin polypeptide chains are cross-linked together to form rubberlike, elastic fibers. Each elastin molecule uncoils into a more extended conformation when the fiber is stretched and will recoil spontaneously as soon as the stretching force is relaxed.