Histology-Fall11 Connective Tissue
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Characteristics: adipocytes with compressed, laterally displaced nucles; blood capillaries visible; white adipose is unilocular and brown adipose is multilocular.
Function: storage and metabolism of fat; cushioning of vital organs; insulation.
Location: white adipose: subcutaneous tissues, omenta, mesenteries, pararenal tissue, and bone marrow; brown adipose: newborns and interscapular and inguinal regions.
AREOLAR CONNECTIVE TISSUE
Characteristics: loosely arranged with numerous collagen fibers, few elastic fibers, fibroblasts, macrophages, and other cellular components.
Function: forms fascia that binds organs and organ components together.
Location: most organs and tissues; expandable tubular structures such as ducts of glands.
DENSE IRREGULAR CT
Characteristics: thick, intertwined bundles of collagen fibers arranged haphazardly with fibroblasts and microphages present.
Function: cushioning; provides attachment for ligaments.
Location: dermis, capsules of organs, periosteum, perichondrium.
DENSE REGULAR CT
Characteristics: collagen bundles arranged in bundles with a regular, precise arrangement; fibers oriented in direction of pull.
Function: joins bones together; muscles as well.
Location: collagenous dense regular CT is found in tendons, ligaments, aponeurosis, and cornea; elastic is found in ligamentum nuchae and ligamentum flava.
Characteristics: concentric sheets of elastic fibers (elastic laminae) with wave-like appearance.
Function: elasticity and recoiling action of aorta and large arteries.
Location: aorta and large arteries.
What is CT?
- •Tissue that encompasses the major
- structural framework of the body.
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