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20 Cards in this Set
- Front
- Back
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What is the function of connective tissue proper?
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Connects parts of body together, separates groups of cells into efficient units so they work more efficiently, stuffing/padding material/fat tissue, repair of tissue (scar tissue), defense, deposit for energy storage, regulates tissue permeability
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Describe collagen fibers
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white, tuff, strong, in-elastic (largest), most common
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Describe reticular fibers
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black tine and delicate, areas where filters are needed
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Describe elastic fibers
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yellow homogeneous, stretches. ex: ear, nose cartilage
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Describe the mesenchyme cell
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stem cell (embryonic) has cytoplasmic processes, ready to be attached to, embryonic so can adapt to what it needs to be
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Describe the fibroblasts/fibrocyte cells
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blast is juvenile cell, cyte is mature/adult cell. cell type for connective tissue proper, contains lots of endplasmic reticulum (repair tissue)
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phagocytic cells
liver spleen brain blood White Blood Cells (WBC) lung |
defense or eats away debris
littoral cells spleenocytes microcytes monocytes lymphocytes dust cells |
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Describe Plasma cells
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no cytoplasmic processes, produces antibodies, found in any area of inflammation, lymphatics, lungs, GI tract, and bone marrow
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Describe Mast cells
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Lots of dark staining bodies, produces heparin and histamine (vasodiolator), immune system, creates swelling (from vasodiolation)
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Describe Reticular Cells
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can become phagocytic, inhabit the reticulo endothelial system (spleen, liver, lymphatics, lymphatic blood system), role is to catch crud and hold it for monocyte, invades connective tissue from blood cells
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Describe blood cells
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carries oxygen, carbon dioxide, and nutrients. RBC is non nucleated, lives for 60-90 days, leucocytes-lymphocyte, monocyte, eosinophil, basophil, neutrophil, platelets
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Describe embryonic connective tissue
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In embryo, watery little fibers, small fibers with high watery content
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Mucus Connective Tissue
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No fibers, jelly like, aqueous humor of eye
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Areolar Connective Tissue
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loose meshwork (think loose basket weave), irregularly arranged, in most widely distributed in the body, mesentary of abdominal cavity
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Dense Fibrous Connective Tissue: irregularly arranged
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resist tension in multiple directions, in heart valves, perineurium, permycium, dura mater, fibrous capsule of organs, periosteum, perichondrium
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Dense Fibrous Connective Tissue: regularly arranged
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resists in one direction, more susceptible to tears, tendons, ligaments and aponeurosis are examples (aponeurosis is a sheet of muscle, there's one in forehead, how you can only move whole forehead, not just one part of it)
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Elastic Connective Tissue
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elastic mostly with a little bit of collagen fibers to anchor, ligamentum nuchae, blood vessels, ears, and nose, stretches and then returns to shape
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Reticular Connective Tissue
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reticular fiber, screen to trap bacteria, reticular cell type, lymph, spleen, and liver
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Describe functions of cartilage
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1. gives flexibility/plyability to structures
2. provides a minimum of friction and wear over joint surfaces 3. bears weight takes compressive forces ex: meniscus 4. ties bones together |
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Describe types/kinds of cartilage: Fibrocartilage
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resembles dense fibrous connective tissue, fibers irregularly arranged, cells in lacunae, intervertebral discs, symphasis pubis
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