connective tissue
Terms
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- myofibroblast
- cells that possess characteristics of firoblasts and smooth muscle cells
- morbid obesity
- defective leptin receptor leads to
- cortisol
- inhibits fibroblasts, long term exposure leads to breakdown of tissues and decreased bone mass
- periphery of cytoplasm
- location of nucleus in unilocular adipocytes
- mediator of inflammatory response and hypersensitivity reaction
- mast cells are
- fibroblasts
- fiexed cell that posses the cellular machinery for the synthesis and secretion of fibers and ground substance
- dense regular elastic
- type of connective tissue with sparse ground substance, elastin forming thing sheets of fenestrated membranes, elastic fibers branch and run parallel to one another, scatterd fibroblasts, and found in ligamenta flave, arteries
- indented oval nucleus, golgi, rER and lysosomes
- cytologic attributes of macrophages
- depress appetite
- function of leptin
- fibroblasts (active, quiescent), myofirbroblast, adipocytes, mast cells, macrophages
- fixed cells of connective tissue
- mesenchymal
- type of connective tissue with abundant ground substance, type III collage (scattered reticular fibers), mesenchymal cells, found in embryonic IM bone formation
- mucous
- type of connective tissue with abundant ground substance, few collagen fibers (type I and III), fibroblasts, and located in umbilical cord as wharton's jelly
- lipodystrophies
- loss of body fat
- loose (areolar)
- type of connective tissue with abundant ground substance, loose array of collagen, reticular and elastic fibers, and lies immediately deep to the epithelium, surrounds blood vessels
- bone marrow stem cells
- mast cells are derived from
- histamine
- causes tissue swelling and increased mucus production of the nasal mucosa
- neutrophils
- first to show up on the scene
- B lymphocytes
- plasma cells are derived from
- phagocytose cellular debris and microorganisms, present antigens to lymphocytes
- functions of macrophages
- dense regular collagenous
- type of connective tissue with sparce ground substance, densely packed parallel array of type I collagen, scattered fibroblasts flattened between collagen bundles, and found in tendons, ligaments, aponeuroses
- mast cell
- fixed cell that has many secretory vesicles of diverse chemical constitution
- reticular
- type of connective tissue with little ground substance, reticular fibers, reticulocytes, and found in RB marrow and lymph tissue organs
- euchromaitc nucleus, well formed rER, golgi
- characteristics of fibroblasts
- secrete extra cellular components, bring gaping edges of wound together
- actions of myofibroblasts
- macrophages
- monocytes emigrate into the connective tissue from the blood stream where they develop into
- clock face nucleus, secretes antibodies, negative golgi
- signature characteristics of plasma cells
- immunoglobulins (antibodies)
- plasma cells synthesize and release
- monocytes -->macrophages
- second wave to show up
- bronchipspasms
- release of leukotrienes in respiratory mucosa elicits
- leptin
- adipocytes secrete
- structure, defense and protection, nutrition, energy reserves, insulation, cushioning
- functionos of connective tissue
- fuse to form giant, multinucleated cells
- when confronted with large matter to phagocytose macrophages
- vimentin filaments
- lipid droplets are ensheathed by
- plasma cells, leukocytes
- migratory cells of connnective tissue
- adipose (white)
- type of connective tissue with sparse ground substance, adipocytes, found in subcutaneous areas and abdominal cavity
- sparce rER, reduced golgi, thin spindle shaped appearance
- characteristics of fibrocytes
- adipose (brown)
- type of connective tissue with sparse ground substance, adipocytes, anf found in the fetus and newborn
- signet ring
- unilocular adipocytes resemble a ____ in light microscopy
- hypertrophy (become epithelial-like in appearance)
- in chronic inflammatory states macrophages
- multilocular adipocyte (brown fat)
- well-endowed with mitochondria which generates heat.
- sites of inflammation
- ___ attract leukocytes
- dense irregular
- type of connective tissue with sparce ground substance, tightly packed type I collagen fibers oriented in many directions found in the dermis of the skin