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Connective Tissue HB
Connective Tissue
| Question | Answer |
|---|---|
| Connective Tissue | -one of the primary tissues -contains cells and varying amounts of extracellular material |
| What is the function of connective tissue? | holds cells together, forming tissues and organs |
| Connective tissue proper | supports and binds other tissues together; provide insulation and protections for other tissues |
| mesenchyme | stem cell that all connective tissues are formed from |
| Vascularity | presence of blood vessels |
| Connective tissues are composed of... | extracellular matrix |
| Extracellular matrix | a complex network of proteins and other macromolecules that hold the cells in a tissue together |
| Three types of loose connective tissue | -areolar -adipose -reticular |
| Areolar tissue | -mostly open space -holds water and slats for surrounding tissue |
| Where is areolar tissue found? | under epithelium and around organs |
| Adipose tissue | comprised of fat cells |
| Adipocytes | fat cells |
| Reticular tissue | contains reticular fibers, which create a stiff framework that supports other cells |
| Function of adipose tissue | insulates, warms body, provides nutrients |
| Loose connective tissue | type of connective tissue that serves primarily as a packing material. -Contains many cells around a loose network of collagen and elastic fibers |
| Dense connective tissue (DCT) | type of connective tissue that consists primarily of densely packed fibers, such as those found in ligaments and tendons |
| Three types of dense connective tissue (DCT) | -regular -irregular -elastic |
| Regular DCT | collagen fibers are arranged in one direction |
| Function of regular dense connective tissue | provides "tensile strength" like a rope |
| Where is regular dense connective tissue found? | tendons and ligaments |
| Irregular DCT | collagen fibers arranged in many directions |
| Function of irregular dense connective tissue | provides strength in multiple directions |
| Where is irregular dense connective tissue found? | capsules around organs |
| Elastic DCT | provides flexible cushioning |
| Where is elastic dense connective tissue found? | found between vertebrae and in arteries |
| Cartilage | -type of specialized connective tissue -found in joints on the articular surfaces of the bone and other locations such as the nose and ears |
| Three types of cartilage | -hyaline -fibro cartilage -elastic |
| Hyaline cartilage | -glassy looking -firm ground substance -few collagen fibers |
| Lacuna | spaces for cells |
| Where is hyaline cartilage found? | found in the larynx, bridge of nose, ribs |
| Fibrocartilage | -contains lots of collagen, mostly running parallel |
| Where is fibrocartilage found? | found in intervertebral spaces |
| Elastic cartilage | -highly flexible -more elastic fibers |
| Where are elastic fibers found? | found in outer ear and tip of nose |
| Osteocytes | bone cell derived from osteoblasts that has been surrounded by calcified extracellular material |
| Osseous | bone tissue |
| Two types of osseous (bone) tissue | -spongy -compact |
Created by:
LFeldmann
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