BSC 109 Lecture Notes - Lecture 5: Chondroblast, Synovial Membrane, Cartilage
2 Sep 2016
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Document Summary
Tissues: groups of cells with a common function. Number of layers: simple: one layer diffusion across the cell, stratified: multiple tiers protection. Shape: cuboidal (dice, columnar (stacked bricks, squamous (squashed, floor tile) Composed of proteins secreted by epithelial cells and connective tissues. Protein channels enable movement of materials between cells. Connective tissues a population of cells that exists suspended in some sort of matrix. General functions: supports softer organs of the body, connects parts of the body, stores fat, produces blood cells. Emily-paige montgomery epmontgomery@crimson. ua. edu: blood is the only liquid connective tissue. Contain cells embedded in nonliving extracellular matrix: few living cells. Two general types: fibrous and special ii. Fibrous connective tissue: function: provides strength and elasticity, contains fibers and cells embedded in gel-like ground substance (matrix, matrix: intercellular material giving the ct its characteristics, cells: fibroblasts, macrophages, lymphocytes, and neutrophils, fibers: collagen, elastic, and reticular. Cartilage: produced by chondroblasts found in lacunae; no blood vessels; high collagen content.
