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Connective Tissue: What Kevin Bacon taught me about tissues? Another off the wall discussion to complete your outer valence shell.

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Presentation on theme: "Connective Tissue: What Kevin Bacon taught me about tissues? Another off the wall discussion to complete your outer valence shell."— Presentation transcript:

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2 Connective Tissue: What Kevin Bacon taught me about tissues? Another off the wall discussion to complete your outer valence shell

3 What is connective tissue? Blood Blood cArtilage cArtilage conneCtive tissue conneCtive tissue fibrOus boNe

4 Functions 1. Connects– ex. fascia, ligaments 2. Supports – ex. skeleton, cartilage 3. Transports – ex. blood 4. Defends – ex. lymph nodes, spleen 5. Insulation – ex. Adipose Just like Kevin Bacon in all his movies!!!!

5 Characteristics 1.few cells  mostly extracellular material or matrix 2.range of vascularity 3.fibers: 1.collagenous (tough and high tensile strength; white) 2.reticular (delicate, branching network) 3.elastic (long, thin, stretchable; yellow) 4.origin is mesodermal

6 Types of Connective Tissue Fibrous – extracellular fibers 1. Loose, ordinary (AKA areolar) – common; wraps and cushions organs ex. fascia 2. Adipose - mostly fat cells; storage & insulation ex. mammary, under skin, abdominal regions

7 Types of Connective Tissue Fibrous – extracellular fibers 3.Reticular - branching network; defense – filters blood and lymph ex. spleen, lymph nodes, bone marrow 4.Dense, White Fibrous - few fibroblasts; tightly packed; regular (parallel) vs. irregular (stretchable); anchors muscle to bone ex. tendons

8 Types of Connective Tissue Bone- osseous tissue Ground or compact bone- osteon or Haversian system (appear like a tree trunk of rings) Spongy or cancellous bone- porous; few cells with blood

9 Types of Connective Tissue Cartilage – avascular; heals slowly; tough but flexible 1. Hyaline - “glass”; translucent ex. covers ends of bones 2. Fibrocartilage – strongest, collagen fibers ex. intervertebral disks, knee 3. Elastic – flexible, elastic fibers in matrix ex. ear, voice box, nose

10 Types of Connective tissue Blood lacks fibers consists of plasma (55% water & 45% erythrocytes, leukocytes, & thrombocytes) transports gases, nutrients, waste maintains temp. and pH; defense


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