Anatomy Midterm 1.docx - Anatomy Midterm 1 Chapter 5...

This preview shows page 1 - 2 out of 4 pages.

Anatomy Midterm 1 Chapter 5: Histology 4 primary tissue classes: TYPE DEFINITION LOCATION Epithelial Tissue Forms boundaries between different environments, protects, secretes, absorbs, and filters Skin surface Inner lining of digestive tract Liver and other glands Connective Tissue Supports, protects, binds other tissues together Bones Tendons and ligaments Cartilage and bone Nervous Tissue Internal communication Brain Spinal cord nerves Muscular Tissue Contracts to cause movement Skeletal muscles Heart muscles Walls of viscera A tissue is a group of similar cells and cell products that arise from the same region of the embryo and. work together to perform a specific structural or physiological role in an organ The matrix is composed of fibrous proteins and are usually a clear gel variously known as ground substance, tissue fluid, extracellular fluid, or interstitial fluid. The ground substance contains water, gasses, minerals, nutrients, wastes, hormones and other chemicals A tissue is composed of cells and matrix Matrix is composed of fibers and ground substance Protection : Epithelia protect deeper tissues from invasion and injury Excretion : Epithelia void wastes from the tissue, such as C02 across the pulmonary epithelium and bite from the epithelium of the liver Filtration : all substances leaving the blood are selectively filtered through the epithelium that lines the blood vessels: all urinary waste is filtered through epithelia of the kidneys Secretion: Epithelia produces mucus, sweat, enzymes, Absorption: Epithelia absorbs chemicals from the adjacent Sensation : epithelia are provided with nerve endings

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture