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Bio 201 Histology (Connectivel)
Connective Tissue (plus some terms)
52
Biology
Undergraduate 1
09/09/2025
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Term
Connective Tissue (4)
 Definition
  • Most abundant tissue
  • From embryonic connective tissues
  • A bunch of cells close together held by intercellur junction
  • Interstitial fluid
Term
Connective Tissue Types
 Definition
  • Connective tissue proper
  • Supporting connective
  • Fluid connective tissue
Term
Connective Tissue proper
 Definition
Fibrous type
Term
Supporting Connective tissue
 Definition
In solid base structures like bone
Term
Fluid Connective tissue
 Definition
Blood and lymph
Term
Embryonic connective tissues (2 types)
 Definition
  • Mucus Connective tissue
  • Mesenchyme
Term
Fascia (3 types)
 Definition
  • Superficial fascia
  • Deep fascia
  • Subserous Fascia
Term
Superficial Fascia (5)
 Definition
  • Connects skin to deep fascia
  • Known as hypodermis or subcutaneous membrane
  • High adipose tissue
  • Divider and holds muscles together
  • Elastic
Term
Deep Fascia (3)
 Definition
  • Collagen and elastin fibers
  • Support and protection
  • Allows muscles to slide during movement
  • Pathways for Vessels and Nerves
Term
Subserous Fascia (4)
 Definition
  • Known as Visceral fascia
  • Lines body cavities and surrounds internal organs
  • Barrier against infection
  • Less elastic
Term
Extracellular Matrix
 Definition
  • Material Outside Cell
  • Ground Substance
  • Fibers
Term
Ground Substance
 Definition
  • background material cells sit on
  • Fluid, gel, solid
Term
Large molecules found in ground substance
 Definition
  • Glycosaminoglycans
  • Proteoglycans
  • Adhesive glycoporteins
Term
Glycosaminoglycans
 Definition
  • Maintaining skin and joint health
  • Hydrophilic
Term
Proteoglycans
 Definition
  • Larger
  • Support and hydration
Term
Adhesive glyprotiens
 Definition
  • Holds tissue together
Term
3 Fiber types
 Definition
  • Collagen
  • Elastic
  • Reticular
Term
Collagen Fibers (white)
 Definition
  • Resist to stretch
  • Flexible
  • 25% of body weight
Term
Elastic fibers (yellow)
 Definition
  • Thin
  • Stretch and recoil
Term
Connective tissue subtypes
 Definition
  • Fibrous
  • Supporting
  • Fluid
Term
Fibrous
 Definition
Loose and Dense connective tissue
Term
Supporting
 Definition
  • Cartilage
  • Osseous
Term
Fluid
 Definition
  • Blood
  • Lymph
Term
Reticular fibers
 Definition
  • Delicate and thin
  • Framework for cells
Term
Resident connective tissue (4)
 Definition
  • Fibroblasts
  • Adipocytes
  • Mesenchymal cells
  • Fixed Macrophanges
Term
Fibroblasts
 Definition
Actively making fibers
Term
Adipocytes
 Definition
  • Fat cells
  • In lipid-containing cells
  • Store lipids/energy
Term
Mesenchymal cells
 Definition
Stem cells
Term
Fixed Macrophages
 Definition
  • Use phagocytosis in connective tissue
  • Tissue repair
  • White blood cells
Term
Wandering Connective tissue (5)
 Definition
  • Mast cells
  • Free Macrophanges
  • Plasma cells
  • Neutrophils
  • T-lymphocytes
Term
Mast Cells
 Definition
  • Tissue repair releases two chemicals
  • Heparin (Blood clotting)
  • Histamine (Blood vessel dilation)
Term
Free macrophages
 Definition
  • Use phagocytize
  • Like large white blood cells
Term
Plasma cells
 Definition
Produce antibodies
Term
Neutrophils
 Definition
  • White blood cells
  • Kill bacteria and debris
Term
T-lymphocytes
 Definition
Kills infected and cancerous cells
Term
Vascular
 Definition
Has blood vessels
Term
Innervated
 Definition
To supply nerves
Term
Adipose Tissue
 Definition
  • Body fat
  • Under the skin
  • Insulation and protection
Term
Phagocytosis
 Definition
Eat cells
Term
Areolar Tissue (4)
 Definition
  • Loose Fibers 
  • All 3 Fiber types
  • Most abundent type
  • Vascular and Highly Innervated 
Term
Reticular (3)
 Definition
  • Little structural support
  • Framework for cells in organs
  • Vascular and highly innervated
Term
Adipose Tissue (5)
 Definition
  • Collagen Fibers 
  • Energy storage 
  • Cushion and insulation
  • Support and protection
  • lipids in cells (Adipocytes)
Term
Dense Regular (3)
 Definition
  • Strong and soft 
  • Parallel organized fashion
  • Poor vascular and nerve supply
Term
Dense Irregular (4)
 Definition
  • Fiber-based
  • Parallel, go to different sections
  • More space 
  • Strong 
Term
Elastic Cartilage (2)
 Definition
  • Elastic Fibers
  • Stretch & Recoil (Like a rubber band)
Term
Hyaline Cartilage (3)
 Definition
  • Most abundant cartilage 
  • Lacune connotations Chondroblasts
  • Jelly-like
  • Allows bones to move over joints
Term
Elastic Cartilage (3)
 Definition
  • Avascular 
  • Elastic Fibers
  • Allows Structures to bend and fold
Term
Fibrocartilage
 Definition
  • Avascular 
  • Lacunae 
  • Organized parallel-arranged fibers
  • Shock absorber
Term
Osseous
 Definition
  • Vascular 
  • Called Bone tissue
  • Osteoblasts lay down matrix around lacunae
Term
Blood
 Definition
  • Fluid in make-up
  • Fibers formed during clotting
Term
Adipocytes
 Definition
  • Fat cells
  • Composed of Adipose Tissue
Term
Lacunae
 Definition
Small cavities within tissue
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