Fibers

• Fibers: elongated structures formed from proteins that polymerize after secretion from Fibroblasts.
• Collagen: most abundant protein in the human body
• Collagen in 30% of the human body's dry weight.
• What is the major product of fibroblasts?

  Collagen
• What type of collagen is the most abundant?

  Type 1
• Reticular fibers: found in DELICATE connective tissue of many organs.
• Reticular fibers consists of what type of collagen?

  Type 3
• What fibers is important in capturing foreign materials?

  Reticular fibers
• Reticular fibers are highly attractive to SILVER CONTAINING STAINS
• Argyrophilic: attracted to silver containing stain
• In RETICULAR FIBERS what stain is SELDOM VISIBLE?

  Hematoxylin and Eosin
• positive: periodic acid-Schiff (PAS)
• Which type of fiber does DERMIS, AORTA, LUNGS, and MESENTERY have?

  Elastic fiber
• Ground substance is a complex mixture of ANIONIC, HYDROPHYLIC PROTEOGLYCANS, GLYCOSAMINOGLYCANS, and Multiadhesive GLYCOPROTEINS.