tissues of the body. cells combine to form tissues, and tissues combine to form organs. there are...

Click here to load reader

Post on 29-Dec-2015




3 download

Embed Size (px)


  • Tissues of the Body

  • Cells combine to form tissues, and tissues combine to form organs.There are four primary types of tissuesEpithelial tissueConnective tissueMuscle tissue Nervous tissue

  • Found in the outer cover of body and in the inner cavities. Has Two Types: Membranous epithelia: form the coverings or linings of organs.Glandular epithelia:form exocrine and endocrine glands.Epithelial Tissue

  • Has five functions: Secretion Absorption Excretion ProtectionSensation

    Epithelial Tissue

  • Epithelial Tissue

  • Epithelium-Human Stomach

  • Glandular Epithelia

    Epithelial tissues illustrate a basic biological principle: that structure closely correlates with function

  • Figure 4.4

  • Binds the cells and organs of the body together All connective tissues consist of two basic components: cells and extracellular fibersTwo types of connective tissue are: Fibrous Connective tissue.Specialized Connective tissueSection 4-1Connective Tissue

  • An important structural component of organs Consists of two types: Dense connective tissue Loose connective tissue

    Connective Tissue

  • Perform specific functions essential to homeostasis The body contains three types of specialized connective tissue:CartilageBoneBloodSpecialized Connective Tissues

  • Cartilage Consists of specialized cells embedded in a matrix of extracellular fibers and other extracellular materialBlood Contains blood cells, platelets, plasma

  • Osseous TissueBone Consists of bone cells (osteocytes) and a calcified cartilage matrixTwo types of bone tissue exist: spongy and compact

  • Consists of specialized cells that contract when stimulated The body has three types of muscle tissue:Skeletal (voluntary , striated)Cardiac (involuntary , striated)Smooth (involuntary . non-striated)Muscular Tissue

  • Muscular Tissue

  • Muscular Tissue

  • Nervous TissueContains specialized cells that conduct impulses Conducting cells, called neurons, transmit impulses from one region of the body to another. Nonconducting cells, neuroglia, are a type of nervous system connective tissue.

  • Nervous Tissue

  • Organ SystemsTissues combine to form organs.Organs are discrete structures that have evolved to perform specific functions Most organs do not function alone, they are part of a group of cooperative organs, called an organ system.

  • Please refer toSylvia MaderHUMAN BIOLOGY 12th EditionDr Awad Widaa