Connective Tissue
Mar 28, 2015
Connective Tissue
What are 6 main functions of connective tissue?
1) Structural framework for body
2) Transportation of fluids and dissolved substances
3) Protection of delicate organs
4) Supports, surrounds, and connects other tissues
5) Storage of energy in the form of lipids
6) Defend the body against microorganisms
What are the three main classifications of connective tissue and their subcatagories?
1) Connective tissue propera) Loose connectiveb) Dense connective
2) Fluid connective tissuea) Bloodb) Lymph
3) Supporting connective tissuea) Cartilageb) Bone
Connective tissue proper Fluid connective tissue Supporting connective tissue
Connective Tissue
What are the three main categories of connective tissues?
Connective tissue proper Fluid connective tissue Supporting connective tissue
Connective Tissue
Dense connectivetissue
Loose connectivetissue
Lymph Cartilage BoneBlood
What are the subcategories of the three main categories of connective tissue?
Connective tissue proper Fluid connective tissue Supporting connective tissue
Connective Tissue
Dense connectivetissue
Loose connectivetissue
Lymph Cartilage BoneBlood
What is the general composition and location of the subcategories?
Fibers create
loose, open framework
Fibers densely packed
Contained in lymphatic
system
Solid, rubbery matrix
Solid, crystalline
matrix
Contained in
circulatory system
What kind of tissue is this?Embryonic connective tissue: Mesenchyme
What are three special features?
Star shaped mesenchymal
cell
Gelatinous 3-D matrix material
or ground substance
What is its main function?
It gives rise to all other connective
tissues
Where is this tissue located?
•In the Embryo
What kind of tissue is this?
Loose connective tissue, a.k.a. areolar connective tissue
What are 4 special features?
Elastic Fibers
Collagen Fibers
Fibroblast nuclei
Macrophages, mast cells, and
some white blood cells
What are its 3 main functions?
1)Surrounds and cushions organs
2)Secondary defense system below the skin
3)Transportation and holding of fluids
Where is this tissue located?
• Under epithelia (fascia)
• Around organs
• Surrounding capillaries
What kind of tissue is this?
Adipose connective tissue
What are 3 special features?
Vacuole containing
fat/oil droplets
Nuclei pushed to side of cell
Adipocyte (fat cell)
What are its 4 main functions?
1)Insulation
2)Energy (lipid) reserve
3)Support and cushioning of organs
4)Protection of organs
Where is this tissue located?
•Hypodermis•Around: ~Kidneys ~Eyeballs•On surface of heart•Female breasts•Hips•Abdominal region
What kind of tissue is this?
Reticular connective tissue
What are 3 special features?
Lymphocyte
3-D matrix of reticular fibers
Mast cells
What is its main function?
Support of other cell types
Where is this tissue located?
•Liver
•Spleen
•Lymph nodes
•Bone marrow
What kind of tissue is this?Dense white fibrous connective tissue, irregularly arranged
What are 2 special features?
Fibroblasts
3-D matrix material of 100%
interwoven collagen fibers
What are its 4 main functions?
1)Attachment
2)Structural strength
3)Movement
4)Reduction of friction
Where is this tissue located?
•Dermis•Submucosa of digestive tract•Fibrous capsules of organs and joints•Covering skeletal muscle•Nerve and muscle sheaths
What kind of tissue is this?
Dense white fibrous connective tissue, regularly-arranged
What are 2 special features?
Fibroblasts make the collagen fibers
3-D matrix of 100%collagen fibers
What are its 3 main functions?
1)Attachment of muscle to bone and bone to bone
2)Friction reduction
3)Stabilizing relative bone position
Where is this tissue located?
•Tendons•Most ligaments•Aponeurosis•Perichondrium•Periosteum•Deep fasciae
What kind of tissue is this?
Hyaline cartilage
What are 3 special features?
Chondrocyte
Lacuna
3-D matrix of cartilage plus a
few collagen fibers
What are its 2 main functions?
1)Support
2)Reinforcement
Where is this tissue located?
•Embryonic skeleton
•End of long bones•(articular cartilages)
•Costal cartilages
•Cartilage of: ~Nose ~Trachea ~Larynx
What kind of tissue is this?
Elastic cartilage
What are 3 special features?
Chondrocyte
Lacuna
3D matrix ofCartilage plus elastic fibers
What are its 2 main functions?
1)Maintains shape and structure
2)Allows flexibility
Where is this tissue located?
•External ear
•Epiglottis
•Auditory canal
What kind of tissue is this?
Fibrocartilage
What are 4 special features?
Chondrocytes in lacunae
3-D matrix of cartilage plus lots of collagen fibers
What are its 2 main functions?
1)Strength
2)Absorption of compressive shock
Where is this tissue located?
•Pubis symphysis
•Intervertebral discs
What kind of tissue is this?
Compact bone (osseous tissue)
What are 5 special features?
Carbon skeletons of osteocytes
Lacunae
Lamellae (layers)Haversian canal
Canaliculi
What are its 4 main functions?
1)Support
2)Protection
3)Storage of Ca+2
4)Hematopoiesis(done by cancellous bone only)
Where is this tissue located?
Bones
What kind of tissue is this?
Blood
What are 3 special features?
Erythrocytes(red blood cells)
Leukocytes(white blood cells)
3-D matrix is liquid blood plasma
What is its main function?
Transportation of nutrients, oxygen, hormones and wastes
Where is this tissue located?
Within blood vessels