ANAT 215 Lecture Notes - Lecture 4: Fibroblast, Basophil, Elastic Fiber
13 Oct 2016
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Document Summary
Basics tissues: connective tissues (reading material: chapter 3: pages 64-71) Components of connective tissue (ct): connective tissue cells extracellular fibers ground substance and tissue fluid: matrix. Ground substance: helps to bind ct fibers together with cells high water content transparent, colourless, viscous (consistency of maple syrup) complex mixture of glycosaminoglycans and structural glycoproteins. Collagen fibers: collagen fibers of ct are of type i most abundant type of fiber in ct tightly packed. Reticular fibers: main component type iii collagen (reticulin) smaller diameter than type i collagen forms a branching interwoven network with no common alignment. Elastic fibers: elastin rubber-like material able to stretch 150% of its resting length. Types of ct: fixed cells (responsible for synthesis and maintenance of matrix) wandering cells ( functions in a defense and immune role) Fixed cells: fibroblasts fibrocytes macrophages mesenchymal cells adipocytes. Wandering cells: free macrophages mast cells plasma cells lymphocytes microphages basophils neutrophils eosinophils.
