ANAT 1010 Lecture Notes - Lecture 5: Chondroblast, Free Surface, Ground Substance
6 Feb 2020
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Document Summary
Lecture 5 - the tissue level of organization part ii. Most abundant and most widely distributed tissue in the body. Blood ( uid connective tissue) transports nutrients and wastes. Cells rarely touch each other due to extracellular matrix. Matrix: bers and ground substance secreted by cells. Consistency varies from liquid, gel to solid. Good blood supply except in cartilage and tendons. Blast type cells retain the ability to divide and produce matrix; broblasts (most numerous) and chondroblasts (except osteoblasts) Cyte type cells are mature cells that have reduced capacity to divide or produce matrix; their major role is maintenance of the matrix (e. g. chondrocytes and osteocytes) Produce antibodies that ght against foreign substances. Mast cells are involved in allergic reactions and produce histamine that dilate small blood vessels. Migrate from blood to connective tissue in response to infection (e. g. neutrophils and eosinophils) Supports the cells and provides a medium for exchange of substances between the blood and the cells.
