Date post: | 14-May-2015 |
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Health & Medicine |
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EpithelialTissue
MascularTissue
NervousTissue
AnimalTissue
ConnectiveTissue
Connective
Tissue
kind of Biological tissue that supports, connects, or separates different types of tissues and organs of the body.
characterized by the abundance of extracellular components.
Composed of a specialized cells and extracellular protein fibers called matrix.
Connective TissueFunctions:
• Structural framework for body• Protect organs• Transport fluids and dissolved materials• Store energy reserves(fat) and minerals• Immunity
categories of connective tissue based on composition of matrix
Connective Tissue Proper
Fluid Connective
Tissue Supporting
Connective Tissue
Connective Tissue Proper
- Semi- solid matrix
-Fibroblast primary cell type secrete extracellular proteins (fibers).
Fibroblast
Fibers:• collagen- long, straight, unbranched• reticular- thinner, flexible, branching• elastic- branched and wavy
Connective Tissue Proper
elastic
collagen
Connective Tissue Proper
a) Loose • Areolar• Adipose
b) Dense• regular• irregular
Connective Tissue Proper
a) Loose • Areolar• Adipose
•Loose connective tissue is the most common type of connective tissue in vertebrates.
Functions:
It holds organs in place and attaches epithelial tissue to other underlying tissues.It also surrounds the blood vessels and nerves.
Connective Tissue Proper
a) Loose • Areolar• Adipose
Areolar Connective tissue
-tissue that consists of a meshwork of collagen, elastic tissue, and reticular fibres - with many connective tissue cells in between the meshwork of fibres.
Collagen fiber
Elastic fibers
Fibroblasts
Areolar Connective tissue
Functions:
•Support•Strength, and•Elasticity.
•Areolar tissue is found in many locations around the body.•One important area is the skin
Location:
Connective Tissue Proper
a) Loose • Areolar• Adipose
Adipose Connective tissue-a loose fibrous connective tissue packed with many cells (called "adipocytes") that are specialized for storage "fats".
fat-filled vacuole
Dense connective
tissue Loose connective
tissue
Adipose Connective tissue
Functions:
•Adipose tissue acts as an insulating layer, •It also has a protective function, and support around some of the major organs.•A means of energy storage.
•Adipose tissue forms a thick layer under the skin, around the kidneys and in the buttocks
Location:
Connective Tissue Proper
a) Loose • Areolar• Adipose
b) Dense• regular• irregular
Dense Connective tissue
- also called dense fibrous tissue, has fibers as its main matrix element.
Connective Tissue Proper
a) Loose • Areolar• Adipose
b) Dense• regular• irregular
Dense regular Connective tissue
-Provides connection between different tissues. The collagen fibers in dense regular connective tissue are bundled in a parallel fashion.
Includes:-tendonstough band of fibrous connective tissue that usually connects muscle to bone and is capable of withstanding tension-Ligamentsthe fibrous tissue that connects bones to other bones
Tendons Ligaments
Dense connective
tissue Loose connective
tissueFat/Adipose tissue
Dense irregular Connective tissue
-has fibers that are not arranged in parallel bundles
Collagenirregularly arranged
Structure:
Fat/Adipose tissue
Located:
-This type of tissue is also in the protective white layer of the eyeball and in the deeper skin layers.
Function:
Fat/Adipose tissue
Connective Tissue Proper
Fluid Connective
Tissue Supporting
Connective Tissue
Fluid Connective
Tissue•Blood• Lymph
Located:
Liquid connective
tissue
Blood- plasma (watery matrix)formed elements:• Red blood cells (erythrocytes)• White blood cells (leukocytes)• Platelets2. LYMPHformed from interstitial fluidlymph vessels, lymph nodeslymphocytes (types of WBC) – immunity
Structure:
Liquid connective
tissue
Blood Vessel
erythrocytes
Function:
Liquid connective
tissue
Connective Tissue Proper
Fluid Connective
Tissue Supporting
Connective Tissue
Includes:
Liquid connective
tissue
Structural tissues – support and protectionSolid matrix, lots of fibers w/ few cells relative to matrixTwo main types1. CARTILAGE2. BONE
Located:
Fibrous connective
tissueCHONDROCYTES, found in LacunaeMatrix: solid/semi-solid (gelatinous)Ground: chondroitin sulfatesFibers: collagen, elastic, reticularCartilage is avascular
CARTILAGE
Fibrous connective
tissue
3 types of cartilage:1. Hyaline cartilage
2. Fibrocartilage
3. Elastic cartilage
BONECells: OSTEOCYTESGround: calcium salts, little fluidFibers: collagenBone has a well-developed blood supply